development kit and libraries for SEGA Master System / SEGA Game Gear / SEGA SG-1000 / SEGA SC-3000 homebrew programming using C language (and the SDCC compiler)

Physics engine in python

Retrospective games and demos

A retro 3D dungeon role-playing game made in Python.

An opinionated list of awesome Python frameworks, libraries, software and resources.

シューティングゲームっぽい？未完成ですけど・・

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

横スクロールシューティングゲームです（開発中）

a unicode pixel font builder for pyxel

Small snippets for the Python retro game engine

A retro game engine for Python