OsirisOpen-source source portSimulation
Play Pharaoh and Cleopatra campaigns with a new engine written in Rust.
On GitHub since Sep 2026
Simulation
Build a place. See what happens next.
Discover new open-source simulation games, from isometric cities to shared neighborhoods. These projects offer very different kinds of play: check the platform, multiplayer labels, and development notes before jumping in.
16 simulation games to explore
Independent curation, with source code and play requirements.
OsirisOpen-source source port
Townies
57Move into a shared town, deliver newspapers, tidy gardens, and build a neighborhood with other players.
On GitHub since Sep 2026
Simulation
Tend a small sheep farm together in a shared browser world.
On GitHub since Sep 2026
Play nowAI-assisted
Celadon
22Shape a pot on the wheel, mix a glaze, and see how it survives the kiln.
On GitHub since Aug 2026
Play nowAI-assisted
Simulation
Paint roads and neighborhoods with broad gestures, then watch a city interpret your marks.
On GitHub since Jul 2026
Box Office IncOpen-source gameSimulation
Hire a film crew, produce movies, market their releases, and manage a studio's finances.
On GitHub since May 2026
IsoCity
2.3kZone a small town into a busy isometric city, then connect it with roads, trains, and airports.
On GitHub since Nov 2025
Play nowAI-assisted
shapez
7kBuild conveyor factories that cut, rotate, combine, and color geometric shapes.
On GitHub since Apr 2020
Augustus
2.1kBuild a Roman city with an expanded Caesar III engine and additional gameplay systems.
On GitHub since Jan 2020
OpenLoco
1.9kBuild a transport company using a modern reimplementation of Locomotion.
On GitHub since Jan 2018
Julius
3.4kBuild a Roman city using a faithful modern reimplementation of Caesar III.
On GitHub since Aug 2017
LinCity-NGOpen-source gameLinCity-NG
642Build a city while balancing its economy, resources, and environmental demands.
On GitHub since Mar 2015
OpenRCT2
16.5kDesign roller coasters and manage an amusement park with an expanded community engine.
On GitHub since Apr 2014
Thrive
3.8kGuide an evolving organism through a biology-themed simulation.
On GitHub since Aug 2012
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