Duck Duck Go - always forget if it's a goose or a duck, just kidding!
Fabien Sanglard's website - nice reading on reversing game engines
Lex Friedman interview with John Carmack - Carmack is one of the best pragmatic programmers
The Making of Fallout 76 - NoClip docu
The Making of Dishonored - NoClip docu
The Making of Prey - NoClip docu
Deathloop Developer Breaks Down its Design - NoClip docu
The Story of Thief & Looking Glass Studios - NoClip docu
How Gloomwood Combines Survival Horror & Immersive Sims - NoClip docu
Luc Dekens home page - Belgian PowerCLI (vmware) Guru
Mark Russinovich home page - Mark Russinovich
Kyle Rudder home page - PowerCLI guru and contributor
Sami Laiho home page - Windows Internals and Security
Internet Archive - The way back machine :)
LDAP Syntax Filters
Icculus - Not to forget this guys game ports
Box2D - 2D Physics library
Larian Studios - because I support games made from and by my country
Outcast : New Beginning - Outcast 2, created by Appeal (Yves Grolet and Frank Sauer)
Arkane Studios - one of the best game studio's and also, it's origin is Europe
Bethesda game studios - How could I not miss one of the best games franchise creators
Birgers WINROTT Page - Helped me with the algorithm of the Masked Textures in ROTT utility I wrote.
The Dark Mod - Always liked Looking Glass studios and Thief series
Thief2X - Thief2 mod - Taffers will understand, complete Thief 2 The Metal Age mod 'Thief2X'
Thief The Black Parade - Must play, Unoffical mod for Thief The Dark Project
OpenRA - Open Red Alert (supports Dune2K, C&C TD and C&C RA)
Soldat home page - Soldat
Elasto Mania - oooh, the good old (MS-Dos) days
Fallout London - Fallout 4 mod
The Force Engine - also called TFE, Dark Forces (and also Outlaws) remake
Soloud Sound Engine - Good open source alternative to FMOD
Go source code
Powershell source code
EA Copy - Electronic Arts 'Robocopy' clone
John the ripper source code - euhm, never mind ...
ROTT source code - one of the best games in history
Doombuilder
Doom source code - ID Tech 1
Quake source code - ID Tech 2
Quake2 source code - ID Tech 2.5
Quake3 source code - ID Tech 3
Doom3 source code - ID Tech 4
Doom3-BFG source code - ID Tech 4.5
TES5Edit - Skyrim & Fallout editor
VVVVVV game source - VVVVVV game
Revenge of the Titans source code
Windows XP src leak code
The Dark Mod source
The Dark Mod editor source
C&C Remaster source code
OpenRA source code
Soldat source code
Goldsrc SDK - Half-Life source
Jedi Academy source code
Jedi Outcast source code
Homeworld original source code
NOLF source code
Super Meat Boy source code
Spelunky Classic source code
Dark Engine source code - Copy of the Thief2 'Dark engine' leaked source thief_2_service_release.7z
The Force Engine source code
VS Code source code
Putty - SSH or telnet util
Notepad++ - Notepad on steroids
VS Code - good open source codeing editor from MS
Arch linux - do I need to say more?
Rocky linux
Alma linux
Paint.NET - freeware and mini version of Photoshop in .NET
linux kernel - Linux kernel
FreeBSD - Better BSD version
MenuetOS - Assembly written mini OS
Powershell Gallery - repo for pwsh modules
Audacity - sound editor
Sysinternals utils
Windows Service Wrapper - handy to wrap a script or process as a Windows SVC
HDTune - handy for HDD or SSD S.M.A.R.T stats
SumatraPDF - PDF reader, also supports epub, mobi, ...
Rufus - USB ISO writer tool
WMIExplorer - better tool for WMI queries
Powershell - latest pwsh version
VirtualBox - freeware Hypervisor type 2
jfbuild source code - base engine for Duke3D and Shadow Warrior ports
MS PowerToys - re-live 1995 tools, modern version
DosBox - handy for ol'programs
sfxr - cool little tool for generating sound samples. FEZ used it and other games.
Ghidra - NSA open source decompiler
x64dbg - x64 debugger
Windows SDK - windbg, Windows header files, ...
HxD - Windows HEX viewer
dotPeek - .NET decompiler
Wireshark - network tracing tool
npcap - npcap library
Process hacker - Alternative to procmon and procexp from Sysinternals
Kape - kroll a.k.a. KAPE
Fiddler - Proxy tool
Black arch - Arch linux based alternative to Kali
Eric Zimmerman's tools - Can't miss these tools
Volatility forensics - memory forensics
rawpixels - handy for trying to reverse game data files and try to visualize textures inside a data file
ADxRay - AD scanning tool for AD security
PingCastle - PingCastle reporting tool for AD security
PurpleKnight - Semperis Purple Knight is the "other Ping Castle" tool
Refactoring Guru - Refactor code and Design Patterns. Very good books on the topic.
PacktPub - Packet Publishing. They have a quite cheap subscription service.
Springer - The owner of the Apress books brand. They also have a huge collection of free ebooks for download.
Manning - High quality programming books.
No Starch - Veteran store in Unix and open source books.
InformIT - High quality reading material. Child brand of Pearson, aimed for IT books.
PragProg - The Pragmatic Bookshelf. Lesser known books publisher, but decent quality context.