Unity - The multiplatform game creation tools for everyone.
Ticket to Ride - Ticket to Ride is a Turn-based Strategy, Puzzle, Board, Co-op, Single, and Multiplayer video game created and published by Days of Wonder and Asmodee Digital.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Quackle - Open-source word game similar to Scrabble. Features a board editor, analysis tools, and artificial intelligence that rivals the best players in the world!
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Lexica - An open source word-search game.