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Games that try to simulate real-world activities (like driving vehicles or living the life of someone else) with as much realism as possible. Simulators generally require more study and orientation than arcade games, and the best simulators are also educational.

Things made with or for the open source 3D modeling software, Blender

Unity is a game engine for 2D, 3D, AR and more

Unreal Engine is a 3D game creation tool