OpenTTD - An open-source clone of the classic game ...
Doodle God - Doodle God puts the power of creation in your hands!
Simutrans - Simutrans is an open-source transport simulator.
Little Alchemy - Little Alchemy is a Free to play, Browser-based, Puzzle and Education video game created and published by Reckloak.
Transport Tycoon Deluxe - Transport Tycoon Deluxe is a Business Simulation developed by Chris Sawyer and published by MicroProse.
Farm Tribe - Handle the Mayan secret while also arranging a farm within the unique blend that Farm Tribe offers.