Free, open-source engine for 2D and 3D games.
Game engines listings
Cards

Godot
godotengine.org
Godot
Free, open-source engine for 2D and 3D games.
Defold
defold.com
Defold
Free game engine for cross-platform games.

GDevelop
gdevelop.io
GDevelop
No-code, open-source game engine.
GameMaker
gamemaker.io
GameMaker
2D game engine used for many indie hits.
Bevy
bevy.org
Bevy
Data-driven game engine built in Rust.

raylib
raylib.com
raylib
Simple library for learning game programming.
Rosebud AI
rosebud.ai
Rosebud AI
Make and share games by describing them to AI.