A downloadable game for Windows, macOS, and Linux

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Fragments of Euclid is a game about exploring and solving puzzle in a mind-bending environment inspired by M.C. Escher. Enjoy the peaceful mood while trying to understand this strangely connected world.

The game is about 45 minutes long and save your progress. I want to add more content to the game in the future. With new mechanics, puzzle, more story ...

If the graphic style is too strong for your confort, you can switch it in the option menu.

Updates : 1.1 : add a checkpoint and rename another to improve one of the challenge. 1.4 : Rework of almost each puzzle to be a bit less frustrating and hint in the correct direction. 1.4c : Add option to change the Field of View between 60 and 90 degrees.

The game is based upon the short prototype "Non Euclidean Room" that I made during a Ludum Dare. You can play it there : nusan.itch.io/non-euclidean-room

PlatformsWindows, macOS, Linux
Release date Mar 03, 2017
Rated 4.7 out of 5 stars
(333 total ratings)
Tags3D, 3D Platformer, Atmospheric, Dark, Exploration, First-Person, mind-bending, Non violent, Puzzle-Platformer
Average sessionAbout an hour
InputsKeyboard, Mouse, Gamepad (any)
AccessibilityColor-blind friendly, Subtitles


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Click download now to get access to the following files:

fragments-of-euclid-win.zip 55 MB
Version 1.4c
fragments-of-euclid-win32.zip 54 MB
Version 1.4c
fragments-of-euclid-linux.zip 68 MB
Version 1.4c
fragments-of-euclid-osx.zip 70 MB
Version 1.4c
FoE_SoundTrack.zip 8 MB

Development log


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3rd favourite Itch Game of 2023 (other ones in this post)
Will give some money to the game as thanks

The graphical style definitely helps making this so high, though I think even without it this Game would've been my favourite Puzzle-Pame of 2023. Though I do think the Shadow-UV-Texture could've been a little but less repetitive, still an amazing effect. Any hints on how to do this, the texture is applied via Screen-UV but I don't quite know of a way to get a fitting lightness value in a Fragment Shader to make it look like shading.

I really don't know what else to write because it was such a long time since I first played it (now a year ago). So I can't really comment on the Puzzles themselves.

I would be really really interested in seeing what else this game could have to offer. So if you ever do get around to continuing this then I'll be really excited to see what it's doing.

Mauritius Escher. Cool, I replay the game in my other channel. Uhm ... It will be continued? It should, I guess. Version Linux.

ngl the game is quite neat but it also has some scary vibe to it when i first played it

So cool

This is just incredible!

Visually this is very stunning and also so cool to roam around in these twisty spaces!

I realllly wish that there weren't any barriers or random resets. I'm sure they were very thought out for making the puzzles work but I feel like it really undersells what makes these spaces really fun. The euclidean space becomes more of a backdrop for the puzzles than the other way around.

I want to explore and break everything and mess up the puzzles because i came at it the wrong angle and just wander around and get lost and..I really like the game I just wish there was more freedom.

Also yay I get to be a floating energy jellyfish. :3

Hi, I'm glad you liked the game! And yeah, you are totally right, I would have loved to not have the resets, they feel really bad. But they are useful for the puzzle to work, like you said, and also to help players not get too lost and frustrated when they fall somewhere. I know some players love to loose themselves in those kind of environments, so I wish I found a better middle ground, but I didn't have the energy at the time. If you did not play the prototype "non euclidean room" I made before this game you should give it a try, it's super short but there is no artificial barriers and there is cool details to find in the scenery. And yeah, I love seeing my little jellyfish jiggling around through the portals :)

Yeah it seems like it'd be a hard balance to pull off! It does help with the puzzles for sure and I cant imagine what sorta mess id be in without the barriers to reign me in some haha.

I'll be sure to check out 'non euclidean room' O: thanks!

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Just registered to say that I agree with Obippo, this needs to be on steam! I'd pay for it even to add it to my library.




Loved the art style and concept of the game. That gravity bridge/rising level was simply brilliant. Really looking forward to the full release:)


please, steam release! :))))))))))))))))))))))))))))


Very bad game, the mouse keeps moving on its own to the top left, i am not the only one to have that problem, please fix it. Like seriously ?? 


I'm sorry you have this bug, it's usually an issue with a gamepad issuing bad directions (try to unplug any) or someone reported having to uninstall an old mouse driver that was at fault


Quick reminder that has bugs does not equal bad software, or else, every single program in existence would be "bad".


I would love to see more set in this world/with this game engine! The perspectives are mind bending but your level design is great for guiding me through once I engage with the chaos head-on.


This has always been one of my favorite games ever, because it is both masterfully simple and mind-boggingly complex.

Another game set in this world/with the same or similar mechanics would make me super happy, but we shouldn't rush master NuSan. If he makes a new game, it'll have to be because he wants to, so that it gets the love it deserves.

Great game. I suck at puzzle games though. It took me like 10 minutes to realise the tentacled thing I was chasing was me lol. 

That was super fun and I really loved the puzzles, I hope you make a sequel !

Thanks for this game, it was fun.
Compared to other games of the genre, a bit rough, without enough tutorial puzzles, but nonetheless doable

I'll go pay for the game now, and hope you'll be able to continue on this kind of games.

11/10 Kinda sad it ended so soon but the way the game works is really cool.


this is amazing

One of the latest Unity games to work on my system. And it is a very good game. What version of Unity is being used? 5.4.1?

I'm glad it work for you, is it newer Unity versions that doesn't work? as far as I remember this is using version 5.5.3f1

Instead of a version issue, there is also the choice of rendering pipeline used by the game (urp, srp, built_in, hdrp) that can have a big impact on compatibility, my game use built-in I think, so the oldest one

Thank you for the information.

Kind regards

This game is amazing and beautiful! The puzzles are confusing and simple at the same time. 

The end really caught me off guard lol

I ♥ this game

omg soooo fun i love this game 1000000/10 love it

This game is BEAUTIFUL and it was a pleasure to play; I don't usually play puzzle games, but this game has given me a complete 180 on my prior thoughts of puzzle games. Something about mind-bendy non-euclidean space games appeal to me a lot, and I really wish there were a sequel to this, since it was so enjoyable :((

I plan to include this on a compilation of brief game reviews on my channel!


Thank you for the video, it was pretty cool to watch how you figured out the puzzles, I'm glad you enjoyed the game!

I thoroughly-enjoyed your work, and this is going down as one of my favorites :) so thank YOU!


I'm a huge fan of geometric art and Escher in particular, I also love B&W and Greyscale. So this is perfect. It runs beautifully on my MBP as well. Huge kudos for this beautiful artwork.

amazing game, beautifully executed. puzzles are super confusing while being somehow simple.


"You got lost too far" engrish

this was a very cool game, I am a bit dumb when it comes to puzzles but with this one i only needed little bit of help, love the art style and puzzles themselves, can't wait to see more!

gorgeous mind bending game

This was absolutely amazing I've always wanted to see what a non-Euclidian game would be like i was always just felt like there was something watching me 10 out of 10 love it

You played Manifold Garden? It's game with simalar concept of non-Eucliudian geometry. I recommend, it's longer and more complex.

ok does it cost money?

Yes, one developer with small help of others made it in 2012-2019 time span

I really enjoyed Manifold Garden, and it was my first thought when I tried this game.

If you want something similiar that is also free, there is Frame of Mind https://sampletextstudiosltd.itch.io/frame-of-mind

There is also Antichamber to try, through Steam.


through expression of favoritism imitation the exploration wanders among impressive compulsion

lines illusion form disjointed expansion into occurance of egress passing to rigorous shape





When will the next part be? I LOVE THE GAME!!!! My favorite level/challenge/whatever you want to call it is the tower. The level with the infinity hallway followed by an infinity hexagon room. I also unlocked the secret level. I've played the game about 1,000 times since I downloaded it. Is there a way to be up to date with news about this game and any more developments?  First two or four times I played this AWESOME game, I had to look up tutorials on YouTube on how to beat the levels. 


I'm glad you like the game, it's always great to know my work is appreciated! I did about half the work on a next part but unfortunately it was too much pressure for me so I paused the development several years  ago. I hope I can get back to it eventually but I can't make any promises :(


I had a blast playing this through, puzzles are my jam and I need to find more of these!!

it was super fun to see you going through the game, thank you for playing!

Oh thank you so much!  I'm glad you enjoyed it! :)


im having a proplem with the mouse it just looks up can any1 help

I have the same problem and it's not something about my pc, it only does that on this game... 

Very fun and interesting game.


Okay, that was friggen cool. Nice job team.

I'm going to basically reiterate what I said about the the prequel Non-Euclidian Rooms:

This game is amazing, mind-bending, and all around a good puzzle game that keeps you focused on smaller challenges while warping your reality. You go into a door upright and come out the other end across the room, sideways with your mind asking how you got there, and that's alright by me!

My Playthrough:


absolutely amazing, my head hurts. 15/10


I love this game. Could you add lever builder mode so I can build my own level worlds?

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