OpenTTD is a free and open source transportation simulator and clone of the classic game Transport Tycoon Deluxe
2. Cities: Skylines
Cities: Skylines is a modern take on the classic city builder.
The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city
3. Plague Inc.
Can you infect the world? Plague Inc. is a unique mix of high strategy and terrifyingly realistic simulation.
4. The Sims
The Sims is a series of life simulation video games developed by Maxis and published by Electronic Arts. The franchise has sold nearly 200 million copies worldwide
5. TrackMania
Represent entire series of TrackMania games including TrackMania, TrackMania Turbo, TrackMania Forever, TrackMania²: Lagoon, TrackMania²: Stadium, TrackMania²:
6. CaesarIA
CaesarIA is an open source remake of Caesar III game released by Impressions Games in 1998, it aims to expand the possibilities of the classical city-building simulators and to add new features showing the city life.