This game is now available on Steam!

Thanks for your help in getting this game selected for distribution via Steam. More information including a link to the Steam store page can be found below.

Greenlight is being retired. For more information on how to submit games to steam, refer to this blog post.
Platforms: PC
Languages: English
Players: Single-player
Mar 18, 2014 @ 5:48am
Jan 26, 2016 @ 7:42pm

View Lemma in the store

Store page
Recent Announcements View All (13)
Release date!
  • Steam leaderboards
  • "God mode" (???)
  • Massive performance improvements - read more here[]
  • Movement code overhaul - read more here[]
  • Level editor is much more pleasant to use now

It's been a long journey with a lot of ups and downs and I could not be more excited to see people play the finished product. Thank you for your support all these years.

Production Update #2
Release date: May 12, 2015
Immersive first-person parkour in a surreal, physics-driven voxel world.

Buy it here

More info on the website[]

Lemma enables creative building through movement. Spawn structures just by moving through space. Extend platforms, smash through walls, and build new ones, all through parkour moves.

Play the extremely old but free alpha demo here


Will there be multiplayer?

No, sorry.

Is there gamepad support?

Yes, the Xbox 360 controller is fully supported!

What about Mac and Linux?

The game is currently Windows-only. I would love to port it, but it will take a lot of effort. It's not out of the realm of possibility though!

What about Oculus Rift?


Why is the player a girl?

Why not?

Is Lemma open source?

The engine and many of the assets in Lemma are completely open source. You can download the source right now from GitHub[] and create your own campaign. The game is designed to be extremely mod-friendly; it includes a scripting system and a rough level editor.

What exactly is a lemma?

In math, a lemma is a theorem or proposition used as a stepping stone to a larger result.

What does that have to do with the game?

Maybe nothing, maybe EVERYTHING.

Why first-person view?

Something about first-person single player games really inspires me. And there are already tons of third-person parkour games. Go play Assassin's Creed, it's quite good!

Are games art?

That is a tricky question. It really depends on your definition of ludonarrative dissonance.
Popular Discussions View All (18)
Jun 17, 2014 @ 12:02pm
Why not third person instead?
Jun 12, 2014 @ 3:37am
Beta Test Feedback
Apr 15, 2014 @ 1:20am
Good concept but
< >
robert.blane Jul 6, 2015 @ 9:18pm 
It's great to go back here and see where this great game started - still one of the best games EVER to have come out of Greenlight, a winner and the best game in my Steam Library. A game to play for many a year to follow!
The Velveeta Guy Jun 19, 2015 @ 7:51pm 
I played this awhile ago while it was still in beta at a little convention at Cosi in Ohio, I loved it so much I think I played for about an hour and a half standing. And I always found a way to get out of the map.
Katana May 13, 2015 @ 3:33pm 
Heh, there seems to be a very recurring theme for parkour games to have a female protagonist. (Mirror's Edge, Cloudbuilt, Lemma)
[C3:M] Bubbanator Apr 17, 2015 @ 9:46pm 
Well i've followed this game from the beggining. and im glad i did, I am so glad that this is finally getting put out.
Chemistal Apr 5, 2015 @ 12:59am 
Where can I download the alpha?
Major Tom Feb 18, 2015 @ 2:13pm 
I have played the alpha. THIS GAME IS AWESOME :D

░█░░█░█░▀▀█▀▀░█▀█ ░ █▀█
░█░░█░█░░░█░░░█▀▄ ░█▀▀█
░▀▀▀▀░▀▀▀░▀░░░▀░ ▀░▀░░▀
░█▀▀ ░█▀█ ░█ ░█▀▀
░█▀▀ ░█▀▀ ░█ ░█
░▀▀▀ ░▀ ░░░▀ ░▀▀▀
▓▓█░░░░ Valve ░░░█
▓▓█░░░░ Add This ░█
▓▓█░░░░ Please! ░░█
▓▓█░░░░ And Give ░█
▓▓█░░░░ Me One! ░█
D.Frog Jan 19, 2015 @ 5:40pm 
ᶄaȶsumii Dec 31, 2014 @ 1:51pm 
I had gotten to test this out with the Oculus Rift at the Ohio Game Developers Expo. Really cool to see it is open source. All your efforts pay off. Looking forward to the release! Great job, man!
Chemistal Dec 29, 2014 @ 4:21am 
░█░░█░█░▀▀█▀▀░█▀█ ░ █▀█
░█░░█░█░░░█░░░█▀▄ ░█▀▀█
░▀▀▀▀░▀▀▀░▀░░░▀░ ▀░▀░░▀
░█▀▀ ░█▀█ ░█ ░█▀▀
░█▀▀ ░█▀▀ ░█ ░█
░▀▀▀ ░▀ ░░░▀ ░▀▀▀
▓▓█░░░░ Valve ░░░█
▓▓█░░░░ Add This ░█
▓▓█░░░░ Please! ░░█
▓▓█░░░░ And Give ░█
▓▓█░░░░ Me One! ░█
Chemistal Dec 29, 2014 @ 3:51am 
good good, very good game. is cool