itch.io

Featureful NES assets studio based off the classic "NES Screen Tool". It's the "famitracker" of NES graphics.

Graphics Editor Suite for NES development

Open source procedural sprite animation

A quick and easy to use drag and drop retro game creator for your favourite handheld video game system

Paint of Persia is a rotoscoping pixel-art tool

A free tool for creating oldschool FPS games

RPG engine and a Character Editor / Level Editor

Create 2D games in JavaScript, made easier