A replacement engine for Ultima VII The Black Gate (and eventually Serpent Isle) that presents a new camera angle and other improvements.

Mega Drive/Genesis core written in Verilog

Sega Megadrive for MiSTer

Simple re-writable Flash Cart for Sega MegaDrive/Genesis maximum classic volume for use with FlashKit programmer

Cycle accurate Mega Drive emulator

Kandinsky 2 — multilingual text2image latent diffusion model

Terrain rendering algorithm in less than 20 lines of code

Engine for making things with a MS-DOS feel, but for modern platforms

Decompilation of Castlevania: Symphony of the Night (PSX+Saturn)

Open-Hardware Floppy Drive Simulator

Golden Axe ROM hack for the Sega Mega Drive/Genesis that adds 32X support

Sega 32X port of the 240p Test Suite

Fantom Bitmap 512 colour ray cast demo for the Sega Mega CD

Xtreme Quality IMA-ADPCM Encoder / Decoder

RmlUi - The HTML/CSS User Interface library evolved

Doom/FX for Super Nintendo with SuperFX GSU2A

Sega 32X implementation for MiSTer

Tiled tileset layer baker

Little Game Engine for VGA 8088/86/286

SGDK - A free and open development kit for the Sega Mega Drive

A SEGA multi-system game engine.

A Polygon/Sprites system for the Sega 32X

A collection of development tools targetting SEGA's SVP chip found in the Mega Drive/Genesis version of Virtua Racing.

Development kit for the Sega 32X

This is the source code to various utilities written by id Software and used during the development of Doom.