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Erasoft / RQ progs games/intros from '88 to '92 for the Commodore 64 & 128
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README.md

"Erasoft" & "RQ progs" games, intros, etc.

A selection of my Commodore games, intros, trainers and recracks from '88 to '92 (for NTSC, although they might work on PAL as well)

(The story behind the preservation of these games: https://retro.moe/2016/06/06/the-quest-for-the-sacred-diskettes/ )

Games

In chronological order:

Race

  • Download: race.d71
  • Platform: C128
  • Year: 1990
  • About: Simple "racing" single-player game
  • Credits: self
  • Instructions:
    • Use joystick in port #2 to play (up-down movements).
    • There are 8 levels and you have to complete two laps for each level

Teenage Mutant Runner Turtle

  • Download: tmrt.d71
  • Year: 1991
  • About: A single-player rescue-your-girlfriend game
  • Credits: self, except:
    • music was ripped from somewhere
    • clouds were ripped from BC's Quest for Tire
  • Instructions:
    • Rescue your girlfriend.
    • Use joystick in port #2 to play.
    • Mechanics borrowed from BC's Quest for Tire.
    • There are 3 levels.
    • When you complete a level, lives = lives + 1. But you cannot have more than 5 lives

Puncher

  • Download: puncher.d71
  • Platform: C128
  • Year: 1992
  • Credits: self
  • Instructions (original notes in spanish: puncher.pdf)
    • You don't really play in this game.
    • You need to program your boxer using assembly language.
    • Kind of 'Core Wars' but much much much simpler
    • Reach 10000 points in order to win
    • The game has a kind of anti-cheat mechanism that can be easily bypassed
    • Files:
      • "AAAA": Erasoft intro at $1300
      • "AAAB": Left player at $2000. See below for details
      • "AAAC": Right player at $2400. See below for details
      • "AAAD": Font at $3000
      • "AAAE": Anti-cheat code loaded at $1c01. Main at $1c10, called from $1776
      • "AAAF": Game documentation loaded at $3000
      • "AAAG": Game logic code loaded $1300. See below for details
    • File "AAAG" (game logic):
      • $1300: Init players
      • $1400: Left player dispatcher
      • $1403: Left player joystick #2 input
      • $14b0: Left player "main logi handler" code
      • $1500: Right player dispatcher
      • $1503: Right player joystick #1 input
      • $15b0: Right player "main logic handler" code
      • $1600: Points handler code
      • $1618: Points for left player
      • $1688: Points for right player
      • $1700: Game Over message
      • $174d: IRQ entry point
      • $17ff: Copy of $d01e (sprite-to-sprite collision detection)
      • $1800: Validate players
    • File "AAAB" (left player logic):
      • Logic code:
        • it just hits the opponent when distances is less than 48 pixels (expanded sprite length)
        • it also disables joystick movment while hitting. cheats!
        • cheating can be detected by game logic while C= key is pressed
      • $2000 - $217f: Data for 6 sprites: head, body, legs #1, legs #2, punch hi, punch low
      • $2180, $2181: Higher punch, lower punch power. Must comply with: $2180 + $2181 == 255
      • $2182, $2183: Higher defense, lower defense. Must comply with: $2182 + $2183 == 255
      • $2184 - $2193: Player name
      • $2194: Player logic
      • Uses sprites #0 (head), #1 (body), #2 (legs) and #3 (arm)
      • Dispatch code at $1400 (in file "AAAG")
      • Player code can jump to $1403 to handle joystick movement, otherwise to $14b0
    • File "AAAC" (right player logic)
      • Logic code: it just flips the sprites horizontally every N seconds
      • $2400 - $257f: Data for 6 sprites: head, body, legs #1, legs #2, punch hi, punch low
      • $2580, $2581: Higher punch, lower punch power. Must comply with: $2580 + $2581 == 255
      • $2582, $2583: Higher defense, lower defense. Must comply with: $2582 + $2583 == 255
      • $2584 - $2593: Player name
      • $2594: Player logic
      • Uses sprites #4 (head), #5 (body), #6 (legs), and #7 (arm)
      • Dispatch code at $1500 (in file "AAAG")
      • Player code can jump to $1503 to handle joystick movement, otherwise to $15b0

Chardef v2.32

  • Download: chardef_232.d71
  • Platform: C128
  • Year: 1992
  • About: A character editor, the grand-daddy of VChar64
  • Credits: self
  • Instructions (original notes in spanish: chardef.pdf)
    • This is a "Terminate-And-Stay-Resident" program. While resident, you can do whatever you want, like saving the charset to disk using BSAVE.
    • F1: Save changes made in the char editor
    • F2: Save Screen RAM to $3000
    • F3: Rotate clock-wise
    • F4: Flip Horizontally
    • F5: Invert
    • F6: Clean
    • F7: Load the selected char in the editor
    • F8: Load Screen RAM from $3000
    • Joy 2: Up,Down,Left,Right: Scroll the editor data
    • Joy 2: Button + Up, Button + Down: Move the split screen up or down
    • Alt or Joy 1 Up: Display the editor frame
    • Shift + Alt: Reset charset
    • Shift + C=: switch between charset 1 and charset 2

The Race

  • Download: therace.d71
  • Platform: C128
  • Year: 1992
  • About: A two-player split-screen horizontal racing game
  • Credits: self
  • Instructions:
    • Player one (top) use Joy #2
    • Player two (bottom) use Joy #1
    • Joy Up / Down: Move the player up / down
    • Joy Up / Down + Button: Faster up / down movement
    • Joy Left / Right: Accelerate / decelerate
    • The player with the lowest score is the one that wins
    • Collision: points = points + 5
  • Bugs:
    • Use "True Drive Emulation" in VICE to prevent a race condition. Otherwise the intro screen won't display correctly

Intros

I also coded some intros. The better looking ones are these two intros:

Intro 10 (NTSC only)

Intro 10

Intro 15

Intro 15

Trainers

I did some trainers as well for C64 games, like:

Giana SistersGalaxyHard Hat MackHunchbackSnoopy

  • [Giana Sisters+.d64](../../raw/master/disks/trainer-gianasisters+ ERA.d64)
  • [Galaxy+.d64](../../raw/master/disks/trainer-galaxy+ ERA.d64)
  • [Hard Hat Mack+.d64](../../raw/master/disks/trainer-hardhatmack+ ERA.d64)
  • [Hunchback+.d64](../../raw/master/disks/trainer-hunchback+ ERA.d64)
  • [Snoopy+.d64](../../raw/master/disks/trainer-snoopy+ ERA.d64)

Recracks

I also did some recracks for c64 games. Recrack: that lame activity that consists in replacing an intro done by someone else with another intro done by yourself.

  • [Airborne Ranger.zip](../../raw/master/disks/recrack-airborne ranger ERA.zip)
  • [Alien Syndrome.d64](../../raw/master/disks/recrack-alien syndrome ERA.d64)
  • [Boulder Dash 16.d64](../../raw/master/disks/recrack-boulderdash16 ERA.d64)
  • [Celebration Kit.d64](../../raw/master/disks/recrack-celebration kit ERA.d64)
  • [Double Dragon II.d64](../../raw/master/disks/recrack-double dragon II ERA.d64)
  • [Elite.d64](../../raw/master/disks/recrack-elite ERA.d64)
  • [Fourth and Inches.d64](../../raw/master/disks/recrack-fourth and inches ERA.d64)
  • [Jordan vs. Bird.zip](../../raw/master/disks/recrack-jordan vs bird ERA.zip)
  • [Maniac Mansion.zip](../../raw/master/disks/recrack-maniac mansion ERA.zip)
  • [MULE.d64](../../raw/master/disks/recrack-mule ERA.d64)
  • [Ninja.d64](../../raw/master/disks/recrack-ninja ERA.d64)
  • [Pro Tennis Tour.d64](../../raw/master/disks/recrack-pro tennis tour ERA.d64)
  • [Sim City.d64](../../raw/master/disks/recrack-simcity ERA.d64)
  • [Soccer Simulator.d64](../../raw/master/disks/recrack-soccer simulator ERA.d64)
  • [Stellar 7.d64](../../raw/master/disks/recrack-stellar 7 ERA.d64)
  • [Turbo Outrun.d64](../../raw/master/disks/recrack-turbo outrun ERA.d64)
  • [Tusker.d64](../../raw/master/disks/recrack-tusker ERA.d64)
  • [TV Sports Football.zip](../../raw/master/disks/recrack-tv sports football ERA.zip)
  • [Wings of Fury.d64](../../raw/master/disks/recrack-wings of fury+4 ERA.d64)

Trivia

  • Why that weird color palette? Because I developed them using a black-and-white TV. I never had the chance to play them on a color TV... until today :-)
  • "RQ progs" comes from Ricardo Quesada Programs
  • "Erasoft" comes from Erasure + software. I used to be an Erasure fan back then
  • My "circle + rectangle + triangle" logo is a remix of the Electronic Arts logo from the 80's. I used to be an EA fan back then
  • My Erasoft logos were based on Erasure logos
  • One game is called Race and another one is called The Race. Kind of confusing, right? A better name would have been Race 2.
  • Each game was packed in a d71 image for convinience. Double-clicking on them should launch VICE emulator. But they can be packed in a .d64 image if needed.
  • All games were developed in a NTSC machine, so tell VICE to emulate NTSC video.

Looking for more ?

Here is the complete collection of my games and intros from 88' to 92':

DISCLAIMER: Some games / intros might require special commands in order to run correctly. Don't expect anything special.

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