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!
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.
Planet Coaster - Planet Coaster is an Adventure-based, Management, Strategy, Sandbox, Building, Single and Multiplayer Simulation by Frontier Developments.
RollerCoaster Tycoon Classic - Create and run amazing parks on your iPhone or Android.