PICO-8 - Lua-based fantasy console for making and playing tiny, computer games and programs.
Godot Engine - Feature-packed 2D and 3D open source game engine.
TIC-80 - TIC-80 is a fantasy computer where you can make, play and share tiny games.
GDevelop - GDevelop is an open-source game making software designed to be used by everyone.
LIKO-12 - Fantasy console built with the Love 2D game engine.
Unity - The multiplatform game creation tools for everyone.