I'll start with the repositories I own or have worked with:
- https://github.com/Trinity-11/Kernel_FMX---The source code for the kernel for the C256. [Authors: various]
- https://github.com/pweingar/BASIC816---This is the code for the BASIC interpreter written for the C256. It is set up to be built using 64TASS and the binary from this project is included in the kernel. [Author: PJW]
- https://github.com/pweingar/C256Mgr---These are the Python scripts for working with the debug interface on the C256. [Author: PJW]
- https://github.com/pweingar/C256Samples---Various samples of assembly code for the C256: sprites, tiles, bitmaped graphics, and the PGX file supported by BASIC's BRUN command. [Author: PJW]
- https://github.com/pweingar/C256SpaceGame---A work-in-progress game for the C256. [Author: PJW]
- https://github.com/drone84/Clock-C256-FMX---A digital clock demo using tiles. [Author: Drone84]
- https://github.com/dtremblay/c256-tracker---C256 Tracker: a music tracker, accepting RAD Tracker files [Author: Grenouye]
- https://github.com/dtremblay/fraggy---Fraggy: a game intended to emulate the Frogger 1980's game. [Author: Grenouye]
- http://c256-foenix.epizy.com/---A sprite example program and a tsd file that enables Tile Studio to output tiles and sprites in a format C256 Foenix can use with 65TASS or other programs [Author: bromleysteve]
- https://github.com/dtremblay/c256-tetris---A working game for the C256 (first one that keeps track of a score, I think), features sprites and music! [Author: dtremblay]
- https://github.com/dtremblay/c256-vgm-player---VGM Player: a package to play music for video games. [Author: dtremblay]
- https://github.com/Trinity-11/FoenixIDE---Foenix IDE: this is our C# based application that has a 65816 emulator (and Vicky and Gabe), along with the TileEditor and Uploader to the machine [Author: various, but mainly Grenouye at this point]