Core Rules 1.2.0

Core Rules 1.2.0: Import Add-ons. A new command, Import Add-ons…
(the main menu on Linux, the More menu on Windows, the File menu on the
Mac), imports every add-on in a folder at once. It reads the folder, its
subfolders and its ZIP archives (also ZIPs inside ZIPs, as the community
shared them), tells each .xpx and .xpt package apart by what it holds,
and lists what comes in, what was found twice and what cannot be imported,
with why, before anything is written. Then it backs up the user databases
and characters, imports from the oldest file to the newest, leaves out the
characters already in the list, copies the add-ons' pictures to where
their records look for them and writes a log.

The Community Add-ons Collection as a .zip. The 672 community add-ons
(36,525 items, 668 pictures and the authors' texts) now come as one file,
CoreRules-Community-Addons.zip,
on the addons release.
Put it in a folder of its own, choose Import Add-ons… and pick that folder;
there is no need to extract it. The whole collection comes in in about a
minute, on Linux, Windows 11 and macOS. The Linux add-ons installer (an
AppImage) is no longer published: the zip and Import Add-ons replace it.

System	File	Install
macOS 14 or newer, Apple Silicon (M1 or newer)	CoreRules-1.2.0-arm64.dmg	Open it and drag Core Rules to Applications, then see below
Windows 11	Microsoft Store	Get it from the Store page
Fedora 44 or newer	corerules-1.2.0-1.fc44.x86_64.rpm	sudo dnf install ./corerules-1.2.0-1.fc44.x86_64.rpm
Ubuntu 26.04 or newer	corerules_1.2.0_amd64.deb	sudo apt install ./corerules_1.2.0_amd64.deb
Arch Linux, CachyOS, Omarchy	corerules-1.2.0-1-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-1.2.0-1-x86_64.pkg.tar.zst
Any distribution with Flatpak, such as Bazzite	The Flatpak repository	flatpak install --user https://brahm.github.io/corerules/io.github.brahm.CoreRules.flatpakref
Any distribution (glibc 2.43+)	CoreRules-1.2.0-x86_64.AppImage	chmod +x CoreRules-1.2.0-x86_64.AppImage, then run it

Opening it on a Mac the first time. The Mac app is signed without a
certificate from Apple and is not notarized, because the project has no
Apple developer account. So the first time you open it, macOS refuses
it and says it could not check it for malicious software. After copying
it to Applications, run this once in Terminal. From then on it opens
like any other app:

xattr -dr com.apple.quarantine "/Applications/Core Rules.app"

Without Terminal: open Core Rules once and press Done. Then go to System
Settings › Privacy & Security, and under Security press Open Anyway
next to "Core Rules" and confirm with your password. Some Macs do not
offer Open Anyway, and a Mac managed by a company or school may not
allow the app at all. You need to do this again after each update. The
.dmg has the same steps in English and Portuguese in
Read Me First.txt.

The rules data on a Mac. The app opens the data package in
~/Library/Application Support/Core Rules/data. Macs have no CD drive,
so File › Extract Data from CD… builds the data package from the ISO
image of a Core Rules 2.0 or Expansion CD, or from a folder the CD's
files were copied into. File › Open Folder… also opens an installation
of the original.

What the app does:

• Opens a Core Rules 2.0 Expansion installation or a data package.
• Creates and edits characters with the Core Rules or Player's Option,
  levels them up, manages parties and prints character sheets.
• Generates NPCs, treasure and encounters, and rolls on the books'
  tables.
• Edits every user database, and imports and exports DM Toolkit
  packages.

Everything it saves can still be opened by the original programs. The
README lists every feature
and every difference from the original. It also says where to find the
disc images if yours are lost (you must own the original discs). The
app contains no rules content: you need your own copy of Core Rules.
SHA256SUMS lists the checksums of every file.

Core Rules Community Add-ons Collection

The Core Rules Community Add-ons Collection as one .zip, built with Core Rules 1.2.0: 672 community add-ons in 36,525 items, with their 668 pictures and their authors' texts.

Download CoreRules-Community-Addons.zip (always the newest; the file with a version in its name is the same build), then, on Linux, Windows or macOS:

1. Put the zip in a folder of its own. There is no need to extract it.
2. In Core Rules, choose Import Add-ons… (the main menu on Linux, the More menu on Windows, the File menu on the Mac) and pick that folder.
3. Check the list of what comes in and press Import. The app backs up UserDbas and Chars first.

The original Expansion program can import its Comunidade.xpx too.

Direct link: https://github.com/brahm/corerules/releases/download/addons/CoreRules-Community-Addons.zip

The app itself is on the Core Rules releases.

Core Rules 1.1.0

Core Rules 1.1.0: now on macOS. Core Rules now runs on Linux,
Windows 11 and macOS, with the same features on all three, the same
backend and the same data files. The Mac version is native. It looks and
works like a Mac app: the sections, the entries and the details in three
columns, every action in the menu bar, and the sheets, the help and the
generators in their own windows. It went through a beta (1.1.0-beta1) on
an Apple Silicon Mac, where it worked as it should. Nothing changes in
what the Linux and Windows 11 versions do. More of their code is now
shared by the three versions. Characters and user databases work on all
three systems and in the original programs.

System	File	Install
macOS 14 or newer, Apple Silicon (M1 or newer)	CoreRules-1.1.0-arm64.dmg	Open it and drag Core Rules to Applications, then see below
Windows 11	Microsoft Store	Get it from the Store page
Fedora 44 or newer	corerules-1.1.0-1.fc44.x86_64.rpm	sudo dnf install ./corerules-1.1.0-1.fc44.x86_64.rpm
Ubuntu 26.04 or newer	corerules_1.1.0_amd64.deb	sudo apt install ./corerules_1.1.0_amd64.deb
Arch Linux, CachyOS, Omarchy	corerules-1.1.0-1-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-1.1.0-1-x86_64.pkg.tar.zst
Any distribution with Flatpak, such as Bazzite	The Flatpak repository	flatpak install --user https://brahm.github.io/corerules/io.github.brahm.CoreRules.flatpakref
Any distribution (glibc 2.43+)	CoreRules-1.1.0-x86_64.AppImage	chmod +x CoreRules-1.1.0-x86_64.AppImage, then run it

Opening it on a Mac the first time. The Mac app is signed without a
certificate from Apple and is not notarized, because the project has no
Apple developer account. So the first time you open it, macOS refuses
it and says it could not check it for malicious software. After copying
it to Applications, run this once in Terminal. From then on it opens
like any other app:

xattr -dr com.apple.quarantine "/Applications/Core Rules.app"

Without Terminal: open Core Rules once and press Done. Then go to System
Settings › Privacy & Security, and under Security press Open Anyway
next to "Core Rules" and confirm with your password. Some Macs do not
offer Open Anyway, and a Mac managed by a company or school may not
allow the app at all. You need to do this again after each update. The
.dmg has the same steps in English and Portuguese in
Read Me First.txt.

The rules data on a Mac. The app opens the data package in
~/Library/Application Support/Core Rules/data. Macs have no CD drive,
so File › Extract Data from CD… builds the data package from the ISO
image of a Core Rules 2.0 or Expansion CD, or from a folder the CD's
files were copied into. File › Open Folder… also opens an installation
of the original.

What the app does:

• Opens a Core Rules 2.0 Expansion installation or a data package.
• Creates and edits characters with the Core Rules or Player's Option,
  levels them up, manages parties and prints character sheets.
• Generates NPCs, treasure and encounters, and rolls on the books'
  tables.
• Edits every user database, and imports and exports DM Toolkit
  packages.

Everything it saves can still be opened by the original programs. The
README lists every feature
and every difference from the original. It also says where to find the
disc images if yours are lost (you must own the original discs). The
app contains no rules content: you need your own copy of Core Rules.
SHA256SUMS lists the checksums of every file.

Core Rules 1.1.0-beta1 beta

Core Rules 1.1.0 beta: macOS. This beta adds a native Mac version,
with every screen of the Linux and Windows 11 versions, over the same
backend and the same data files. It has the look of a Mac app: the
sections, the entries and the details in three columns, every action in
the menu bar, and the sheets, the help and the generators in windows of
their own. It is a beta for testing on a Mac before 1.1.0 is released;
1.0.1 stays the stable version for Linux and Windows 11, and the Linux
packages here are the same app as 1.0.1. Characters and user databases
move freely between the three systems and the original programs.

System	File	Install
macOS 14 or newer, Apple Silicon (M1 or newer)	CoreRules-1.1.0-beta1-arm64.dmg	Open it and drag Core Rules to Applications, then see below
Windows 11	Microsoft Store	Get it from the Store page
Linux	The .deb, .rpm, pacman package, Flatpak and AppImage below	As for 1.0.1

Opening it the first time. The Mac app is signed without a
certificate from Apple and is not notarized: the project has no Apple
developer account. So macOS refuses it the first time, saying it could
not check it for malicious software. After copying it to Applications,
run this once in Terminal, and from then on it opens as any app:

xattr -dr com.apple.quarantine "/Applications/Core Rules.app"

Without Terminal: open Core Rules once and press Done; then in System
Settings › Privacy & Security, under Security, press Open Anyway next
to "Core Rules" and confirm with your password. Some Macs do not offer
Open Anyway, and a Mac managed by a company or school may not allow the
app at all. Either way is needed again after each update. The .dmg has
the same steps in English and Portuguese in Read Me First.txt.

The rules data. The app opens the data package in
~/Library/Application Support/Core Rules/data. Macs have no CD drive,
so File › Extract Data from CD… makes it from the ISO image of a Core
Rules 2.0 or Expansion CD, or from a folder the CD's files were copied
into; File › Open Folder… also opens an installation of the original.

What the app does: it opens a Core Rules 2.0 Expansion installation (or
a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. The
README lists every feature,
where to find the disc images if yours are lost (you must own the original
discs), and every difference from the original. It contains no rules
content; you need your own copy of Core Rules. SHA256SUMS lists the
checksums of every file.

Core Rules 1.0.1

Core Rules 1.0.1, ready on Linux and Windows 11. The Windows 11
version has every screen of the Linux one, over the same backend and the
same data files, with the look of a Windows 11 app. It went through a beta
on the Microsoft Store without problems and is now a final release:
get it from the Microsoft Store,
which signs it, installs the Windows App Runtime it needs and brings every
update. Characters and user databases move freely between the two systems
and the original programs.

What's new on Linux since 1.0.0:

• Flatpak repository: the Flatpak comes from the project's own signed
  repository, so flatpak update, GNOME Software and Discover bring every
  new version
• Editors: a priest's quest spell is called a quest spell instead of
  "0th level", the editors' wording is clearer, and Portuguese tells the
  Abilities and Skills tabs apart
• Characters: Edit Character shows the social class in the language
  chosen, Back keeps what a creation page had, the points pages say why
  they refuse a choice, and the Psionics page leaves the rogue points to
  the Rogue page
• Translations: the app shows the chosen language throughout, and the
  translations lost the original's double spaces

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The
README lists every feature,
where to find the disc images if yours are lost (you must own the original
discs), and every difference from the original. It contains no rules
content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_1.0.1_amd64.deb	sudo apt install ./corerules_1.0.1_amd64.deb
Fedora 44 or newer	corerules-1.0.1-1.fc44.x86_64.rpm	sudo dnf install ./corerules-1.0.1-1.fc44.x86_64.rpm
Arch Linux, CachyOS, Omarchy	corerules-1.0.1-1-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-1.0.1-1-x86_64.pkg.tar.zst
Any distribution with Flatpak, such as Bazzite	CoreRules-1.0.1.flatpak	flatpak install --user CoreRules-1.0.1.flatpak
Any distribution (glibc 2.43+)	CoreRules-1.0.1-x86_64.AppImage	chmod +x CoreRules-1.0.1-x86_64.AppImage and run it
Windows 11	Microsoft Store	Get it from the Store page

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. It also installs from the project's own Flatpak repository,
which brings every new version through flatpak update, GNOME Software and
Discover:
flatpak install --user https://brahm.github.io/corerules/io.github.brahm.CoreRules.flatpakref.
The AppImage bundles the GTK, libadwaita and other libraries of GNOME 51
and runs on Fedora 44, Ubuntu 26.04 and newer. The pacman package needs an
up-to-date system (sudo pacman -Syu), and PKGBUILD builds it from
source with makepkg -si. SHA256SUMS lists the checksums of every file.

The Community Add-ons Collection,
672 community add-ons in one self-installing AppImage, has its own
release:
CoreRules-Community-Addons-x86_64.AppImage.

Core Rules 1.0.0

Core Rules 1.0, the first stable release. Core Rules does everything
the original AD&D Core Rules 2.0 Expansion does, and every feature was
checked against the original programs. Players and Dungeon Masters ran the
release candidate on Fedora 45 beta, Ubuntu 26.10, Bazzite, Arch Linux
and CachyOS, and it worked as it should, so 1.0.0 is the code of
1.0.0-rc2 with the new About window. Characters and user databases made
with the release candidates open as they are.

What's new since 1.0.0-rc2:

• About: the About window has the credits of the original program and
  of this one, the legal notice, the details a bug report needs (version,
  package, GTK and libadwaita, language and data folder) and these release
  notes, and links to the new website, https://brahm.github.io/corerules/
• Packages: the .deb, .rpm and pacman package are plain 1.0.0, and
  replace a release candidate on update

What the release candidates brought since 0.9.0:

• Saving with the CD (rc2): opening the mounted Expansion CD or ISO
  image with Open Folder… copies the disc to ~/.local/share/corerules/data
  (in the Flatpak, its own data folder), opens that copy and saves there
• Importing packages (rc2): Import brings in, in one go, the race/class
  combinations that name two classes of the package
• The test round of 0.9.0 (rc1): Edit Character keeps an elf's subrace,
  a large package (36,525 items) imports in the background without
  crashing, Extract Data from CD copies the pictures, New Character and
  Enter Character have a Psionics step, and more than 40 smaller fixes
• Packages (rc1): the .deb refuses to install on Ubuntu 24.04, which
  is not supported; the Flatpak runs there; a pacman package installs on
  Arch Linux, CachyOS and Omarchy

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The
README lists every feature,
where to find the disc images if yours are lost (you must own the original
discs), and every difference from the original. It contains no rules
content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_1.0.0_amd64.deb	sudo apt install ./corerules_1.0.0_amd64.deb
Fedora 44 or newer	corerules-1.0.0-1.fc44.x86_64.rpm	sudo dnf install ./corerules-1.0.0-1.fc44.x86_64.rpm
Arch Linux, CachyOS, Omarchy	corerules-1.0.0-1-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-1.0.0-1-x86_64.pkg.tar.zst
Any distribution with Flatpak, such as Bazzite	CoreRules-1.0.0.flatpak	flatpak install --user CoreRules-1.0.0.flatpak
Any distribution (glibc 2.43+)	CoreRules-1.0.0-x86_64.AppImage	chmod +x CoreRules-1.0.0-x86_64.AppImage and run it

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. The AppImage bundles the GTK, libadwaita and other
libraries of GNOME 51 and runs on Fedora 44, Ubuntu 26.04 and newer. The
pacman package needs an up-to-date system (sudo pacman -Syu), and
PKGBUILD builds it from source with makepkg -si. SHA256SUMS lists the
checksums of every file.

The Community Add-ons Collection,
672 community add-ons in one self-installing AppImage, has its own
release:
CoreRules-Community-Addons-x86_64.AppImage.

Core Rules 1.0.0-rc2 release candidate

Release candidate for 1.0. Core Rules now does everything the
original AD&D Core Rules 2.0 Expansion does, and every feature was checked
against the original programs and went through a full round of manual
tests. This release goes to real users: after a testing period, the last
release candidate becomes 1.0. Keep a copy of your Chars and UserDbas
folders, and report anything
that is wrong or works differently from the original.

What's new since 1.0.0-rc1:

• Saving with the CD: opening the mounted Expansion CD or ISO image
  with Open Folder… no longer fails with a permission error when saving.
  The app copies the disc to ~/.local/share/corerules/data (in the
  Flatpak, its own data folder), opens that copy and says so; characters
  and everything else made are saved there, opening the CD again reuses
  the copy, and the app opens it on start without the CD. cr does the
  same. A Core Rules 2.0 CD still opens read-only from the disc
• Importing packages: Import brings in, in one go, the race/class
  combinations that name two classes of the package, where the original
  needed it imported twice; importing the Community Add-ons Collection now
  warns only about the 36 races it ships without combinations

What 1.0.0-rc1 brought since 0.9.0, the fixes from its test round:

• Critical: Edit Character keeps an elf's subrace when it saves, and a
  large package (36,525 items) imports without crashing, in the background
• High: Extract Data from CD copies the portraits, icons and monster
  pictures; New Character and Enter Character have a Psionics step for a
  psionicist; a subrace follows its parent race; a kit's negative rogue
  skill modifier reads correctly; slots and points no longer go negative
• Medium and low: more than 40 smaller fixes across rogue skills, equipment, the
  database editors, the NPC generator, encounters, treasure, the sheet,
  printing, the books, the help and the cr command
• Encounters: Re-roll keeps the hit points set by hand, as the
  original's later patch does
• Packages: the .deb refuses to install on Ubuntu 24.04, which is not
  supported; the Flatpak runs there; a new pacman package installs on Arch
  Linux, CachyOS and Omarchy

The README lists everything the app does, where to find the disc images if
yours are lost (you must own the original discs), and every difference
from the original.

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The README
lists every feature.
It contains no rules content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_*_amd64.deb	sudo apt install ./corerules_*_amd64.deb
Fedora 44 or newer	corerules-*.fc44.x86_64.rpm	sudo dnf install ./corerules-*.rpm
Arch Linux, CachyOS, Omarchy	corerules-*-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-*.pkg.tar.zst
Any distribution with Flatpak	CoreRules-*.flatpak	flatpak install --user CoreRules-*.flatpak
Any distribution (glibc 2.43+)	CoreRules-*-x86_64.AppImage	chmod +x CoreRules-*.AppImage and run it

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. The AppImage bundles the GTK, libadwaita and other
libraries of GNOME 51 and runs on Fedora 44, Ubuntu 26.04 and newer. The
pacman package needs an up-to-date system (sudo pacman -Syu), and
PKGBUILD builds it from source with makepkg -si. SHA256SUMS lists the checksums of every file.

Core Rules 1.0.0-rc1 release candidate

Release candidate for 1.0. Core Rules now does everything the
original AD&D Core Rules 2.0 Expansion does, and every feature was checked
against the original programs and went through a full round of manual
tests. This release goes to real users: after a testing period, the last
release candidate becomes 1.0. Keep a copy of your Chars and UserDbas
folders, and report anything
that is wrong or works differently from the original.

What's new since 0.9.0, the fixes from its test round:

• Critical: Edit Character keeps an elf's subrace when it saves, and a
  large package (36,525 items) imports without crashing, in the background
• High: Extract Data from CD copies the portraits, icons and monster
  pictures; New Character and Enter Character have a Psionics step for a
  psionicist; a subrace follows its parent race; a kit's negative rogue
  skill modifier reads correctly; slots and points no longer go negative
• Medium and low: more than 40 smaller fixes across rogue skills, equipment, the
  database editors, the NPC generator, encounters, treasure, the sheet,
  printing, the books, the help and the cr command
• Encounters: Re-roll keeps the hit points set by hand, as the
  original's later patch does
• Packages: the .deb refuses to install on Ubuntu 24.04, which is not
  supported; the Flatpak runs there; a new pacman package installs on Arch
  Linux, CachyOS and Omarchy

The README lists everything the app does, where to find the disc images if
yours are lost (you must own the original discs), and every difference
from the original.

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The README
lists every feature.
It contains no rules content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_*_amd64.deb	sudo apt install ./corerules_*_amd64.deb
Fedora 44 or newer	corerules-*.fc44.x86_64.rpm	sudo dnf install ./corerules-*.rpm
Arch Linux, CachyOS, Omarchy	corerules-*-x86_64.pkg.tar.zst	sudo pacman -U ./corerules-*.pkg.tar.zst
Any distribution with Flatpak	CoreRules-*.flatpak	flatpak install --user CoreRules-*.flatpak
Any distribution (glibc 2.43+)	CoreRules-*-x86_64.AppImage	chmod +x CoreRules-*.AppImage and run it

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. The AppImage bundles the GTK, libadwaita and other
libraries of GNOME 51 and runs on Fedora 44, Ubuntu 26.04 and newer. The
pacman package needs an up-to-date system (sudo pacman -Syu), and
PKGBUILD builds it from source with makepkg -si. SHA256SUMS lists the checksums of every file.

Core Rules 0.9.0 beta

Beta release. Every feature works against real installations and was
checked against the original programs, but the app has had little use
outside those checks. Keep a copy of your Chars and UserDbas folders,
and report anything that differs from the original.

What's new in 0.9.0, which brings the rest of the original's screens:

• Update Character: gender, alignment, kit, background, hit points,
  subrace, racial and class abilities, schools and spheres, weapon and
  nonweapon proficiencies, weapon groups, combat options, traits and
  disadvantages, rogue skills, psionics and wild talents, all charged and
  checked as the original does; the Levels dialog with hit point and PSP
  arrows; buying and selling equipment with the spending money
• Enter Character, for a character that already exists on paper:
  typed-in scores, any race and classes, levels set in the Levels dialog,
  and later pages with no limits checked
• Kits followed everywhere: the Name page's filter and warnings,
  nonweapon and weapon proficiencies (with Core Rules specialization and
  Player's Option weapon groups), rogue skills, schools, spheres and
  spells, experience, hit points, starting money and equipment, in New
  Character and in Update
• New Character: a psionicist's 1st-level PSPs, a subrace's package at
  its price, a random name, the Background step with Select Randomly, the
  Mongrelman's point to any ability, the chance to learn each spell with
  the original's questions, Test for Wild Talents and the Table 83 roll,
  and the Expansion's "Core Rules Vs Player's Option" message, which
  Preferences turns back on
• Editors: the ten remaining part types in Other Parts, the encounter
  template editor, a class's free spells, NWPs and abilities by level with
  Auto Fill, a monster's spells, inventory, attacks and Suggest XP Value,
  a treasure table entry's details, item icons on General Info, Schools…
  on any spell, and the parts lists' Magic Only filter
• DM Toolkit: Group Encounter from a party, hit points by hand,
  Re-roll and New Monster in an encounter, View NPC and Print NPC, View
  and Print on templates, 2-20 tables and treasure tables, copies of saved
  encounters and treasure bundles, Next Image and Full Screen on monster
  pictures, the 2-20 table's template chosen by frequency as the original
  does, and New NPC Group's Standard and Allowed races, kits and alignments
• Help on every screen (Help button and F1), right-click help and
  summaries, the help window's printing, the Online Manual, the Tome of
  Help and About
• Character sheet options (sections, order, page breaks and border),
  Markdown export, and Convert to NPC and back
• Name Conflict asks for another name when an imported part's name is
  taken, and the app offers to rebuild a damaged character list

The README lists the few things that work differently from the original
on purpose.

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The README
lists every feature.
It contains no rules content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_*_amd64.deb	sudo apt install ./corerules_*_amd64.deb
Fedora 44 or newer	corerules-*.fc44.x86_64.rpm	sudo dnf install ./corerules-*.rpm
Any distribution with Flatpak	CoreRules-*.flatpak	flatpak install --user CoreRules-*.flatpak
Any distribution (glibc 2.43+)	CoreRules-*-x86_64.AppImage	chmod +x CoreRules-*.AppImage and run it

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. The AppImage bundles the GTK, libadwaita and other
libraries of GNOME 51 and runs on Fedora 44, Ubuntu 26.04 and newer. SHA256SUMS lists the checksums of every file.

Core Rules 0.8.1 beta

Beta release. Every feature works against real installations and was
checked against the original programs, but the app has had little use
outside those checks. Keep a copy of your Chars and UserDbas folders,
and report anything that differs from the original.

What's new in 0.8.1:

• Monster types, monsters (through their type), races and characters show
  their picture when its file is in the data folder, as the community
  add-ons' pictures now are. The app reads the BMP files itself. The
  character sheet finds the portrait the same way, and reads its folder
  and file in the right order
• An encounter's Characters Not Generated group shows, under each NPC, why
  the generator could not make it, instead of saying it is not available
• The app's description lists the six languages it speaks, and the package
  tests start the app in each one
• The Core Rules Community Add-ons Collection (corerules-community-addons
  on GitHub Packages) leaves out Evermore's monthly goodies, installs the
  668 pictures that came with the add-ons and shows their authors' texts
  on request (see addons/README.md)

What the app does: it opens a Core Rules 2.0 Expansion installation (or its
CD, or a data package), creates and edits characters with the Core Rules or
Player's Option, levels them up, manages parties and prints character
sheets; it generates NPCs, treasure and encounters, rolls on the books'
tables, edits every user database and imports and exports DM Toolkit
packages, all in files the original programs still open. A Core Rules 2.0
installation opens read-only and is imported into the Expansion. The README
lists every feature.
It contains no rules content; you need your own copy of Core Rules.

System	File	Install
Ubuntu 26.04 or newer	corerules_*_amd64.deb	sudo apt install ./corerules_*_amd64.deb
Fedora 44 or newer	corerules-*.fc44.x86_64.rpm	sudo dnf install ./corerules-*.rpm
Any distribution with Flatpak	CoreRules-*.flatpak	flatpak install --user CoreRules-*.flatpak
Any distribution (glibc 2.43+)	CoreRules-*-x86_64.AppImage	chmod +x CoreRules-*.AppImage and run it

The Flatpak needs the GNOME 51 runtime from Flathub, which flatpak install
offers to fetch. The AppImage bundles the GTK, libadwaita and other
libraries of GNOME 51 and runs on Fedora 44, Ubuntu 26.04 and newer. SHA256SUMS lists the checksums of every file.