atari800

Millfork: a middle-level programming language targeting 6502- and Z80-based microcomputers and home consoles

Mad Pascal Compiler for 6502 (Atari XE/XL, C64, C4Plus, Neo6502)

Commodore 64 OS running on Atari 8-bit hardware

6502, 65816 assembler (Atari XE/XL)

source code for Worms? by David S. Maynard

Cross-platform Atari 8-bit Emulator based on Atari800

Various reverse engineered source code

Ghidra loaders & filesystems for retro platforms (ZX Spectrum, Apple II, TRS-80, etc.)

This is a mashup between BlocklyVN32X and 8Bit-Unity. It allows you to make Visual Novels for classic 8bit computers and consoles, using a visual scripting language.

Psychedelia/Colourspace by Jeff Minter

Baremetal Atari 8-bit emulator for Raspberry Pi (400/800/XL/XE/5200). Instant boot, no OS. Inspired by BMC64.

Flipper Zero application that emulates SIO peripherals for Atari 8-bit computers.

SXEGS Cartridge Gerber files and STL models for ATARI 65XE/130XE/800XE/800XL

Alternate Reality - The Dungeon - Atari 8-bit

An atari800 port from the MiSTer core to the tang nano 20k

RetroLoad.com is a web application for converting tape archive files of historical computers into sound.

Atari Inform Interpreter

Atari 8-bit Rom Image File Explorer based upon ATR Image Explorer

Port of the famous Sokoban for Atari 800XL with over then 4400 levels on single DD disk.

Code that runs the Atari 8-bit Twitter bot at https://twitter.com/Atari8BitBot