DragonRuby Game Toolkit
An intuitive 2D game engine. Fast, cross-platform, tiny, hot loaded.
PICO-8
A fantasy console for making, playing and sharing cute 32k cartridges.
Planimeter Game Engine 2D (Formerly Planimeter Grid Engine)
LÖVE-based game engine for Lua
GeoMaker!!
dress up with custom images
Slipstream Toolkit
modding tools for Slipstream
Foamcore
Content creation app for Esyverse games
Dll/Mod Unity Game Injector | Mork
Mod unity games easier and faster with Mork
Monke Kart Mod Kit
Looking to mod? Go here!
Modular Godot
Automatic, understandable mod support for every game (in Godot, at least)
Big Block Engine
2D block-based mod-friendly sandbox game/game engine
TableTron
A virtual table, to use for Tabletop games, virtually!