Welcome to Principia
Principia is a physics-based sandbox game. Build and play advanced contraptions, circuiting, minigames, robot adventures and more. Open source, free and available for Windows, Linux, Android and more, download it today.
This site is the new community site for Principia. When you have installed Principia, enjoy the levels others have created, and register in order to upload your own levels and interact with the community.
Also check out...
And the Official community site archive, an archive of old levels spanning from 2013 to 2018.
Featured levels
Latest news More
- Aug 1, 2024 – New contest: Destruction Frenzy
- Jul 12, 2024 – Principia 2024.07.12
- Jun 28, 2024 – Principia 2024.06.28
- May 18, 2024 – Principia is now on F-Droid!
- Feb 29, 2024 – Principia 2024.02.29
ROllerozxa commented on Bed Wars work in progress: 5 days ago
LuaScript has undocumented access to Luasocket for making network connections when a hidden level flag is enabled. It was originally added to allow levels to implement multiplayer functionality but has rarely ever been used.Galaxium commented on Image test: 5 days ago
Nah that's crazyGalaxium commented on Pointer follower but...: 5 days ago
LolGalaxium commented on Bed Wars work in progress: 5 days ago
Not unless ROllerozxa decides to add some kind of LAN multiplayer or something.Galaxium commented on Warehouse Job: 5 days ago
Oh yeah.I wanted to implement an anti-stuckundertheelevator mechanism but gave up and decided if you do get stuck it's user error.
Miner34 commented on Warehouse Job: 6 days ago
I got stuck under the elevator with a score of 3Glados commented on Image test: 6 days ago
@pele yes lol, I took them as a test, but I'll try to make them higher in resolution and other images as well. Also, I'd like to try low resolution video, but without soundpele commented on principia cool: 6 days ago
cool???