VilleKrumlinde/zgameeditor

tiny game engine

Blazium Engine – Multi-platform 2D and 3D game engine

Bitty Engine - An itty bitty 2D game engine, with built-in editors, programmable in Lua.

Godot Engine – Multi-platform 2D and 3D game engine

ZQuest Classic is a game engine for creating games similar to the original NES Zelda

2D Game Engine with visual WYSIWYG editor and JS scripting

The Ren'Py Visual Novel Engine

TIC-80 is a fantasy computer for making, playing and sharing tiny games.

Brakeza3D is a OpenSource Engine3D for old school lovers