Retaliate for the Commodore 64 (Community Edition)

September 4, 2023 · View on GitHub

Project to remake, in 6502 Assembly, the space shooter game Retaliate (Roku & Android) for the Commodore 64

Introduction

After developing remakes of classic 8-bit games (see links below on this document) to the Roku platform (streaming box/TV OS) I decided to work the other way around, this time, developing for the Commodore 64 computer a version of one of the most successful games for Roku, the arcade-style space shooter Retaliate. Originally created by Romans I XVI Gaming, Retaliate has a unique concept, unlike the classic shooters (Space Invaders, Galaxian, Galaga) where you have infinity shooting power, here you start with no ammunition at all! However you have energy stored for a shield that, when is activated, not only can destroy the enemies but most importantly collect their ammo so you are able to RETALIATE!

Project Information

If you want to know more about the development of this game please take a look at the project timeline page.
To see the memory map of the game check the repository wiki page.
Open the Changelog to check the history of the source code implementation.

Game Editions Comparison

The source code on this repository contains the Community Edition of the game, that has the same game engine code as the DX edition of the game, but with some limitations, take a look on the table below to see what are the main differences between the two editions.

Feature	Retaliate CE	Retaliate DX
Skill Levels	4	4
Stages per Level	7	7 + Ending Scene
Player Ship Models	1 + 4 to unlock	1 + 4 to unlock
Double cannons	N/A	2 models
Enemy Ship Models	6	10
Enemy Formations	18	36
Intro Screen	Simple	Enhanced by Jon Eggleton
UI and Sprites	Simple	Enhanced by @smilastorey
Sound Effects	Simple	Enhanced by TND
Game Music	Main Theme	Menu and Main Theme by TND
Sound Effects	Simple	Enhanced by TND
Localization	en-us	en-us, pt-br, es-es
Game Control	Joystick	Joystick and SNES Controller
Easter Egg Mode	N/A	Unlock with joystick
Assembly code	CBM .prg Studio	KickAssembler

If you learned from this project and want to motivate me to develop more cool stuf, head to my store and purchase Retaliate DX. I can guarantee you will enjoy a lot the additional features!