Unity - The multiplatform game creation tools for everyone.
Tricount - Manage and share expenses with friends
Godot Engine - Feature-packed 2D and 3D open source game engine.
Kittysplit - The easiest way of sharing costs with a group of friends
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ihatemoney - Manage your shared expenses, easily