Stardew Valley - Stardew Valley is a 2D Awesome, Action, Role-playing, Crafting, Top-down, Building, Sandbox and Single-player video game create by ConcernedApe and published by Chucklefish.
OpenRCT2 - Game engine recreation of RollerCoaster Tycoon 2 adding new features.
OpenTTD - An open-source clone of the classic game ...
Parkitect - Build the theme park of your dreams, and keep it running!
Aztec Tribe - Aztec Tribe is an Engaging, Action-Adventure, Strategy, Building, Management, and Single-player Simulation created and published by Big Fish Games.
Rollercoaster Tycoon 2 - Amusement park simulation game created in 2002.