$ S.E.B. > game

174 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
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About this game

- Welcome, you are SEB and I am GUSTAV, I will manage and validate your tests. We are starting now -

"$ S.E.B. >" is an indie physics based platform-puzzle game with one complete story, at least one hour of game, 100+ levels, originals retro-wave musics and a very simple gameplay.

You are a simple, black, 2 dimensional cube in a simulated test environment. Your only ability is jump, and you'll need to pass all the tests room generated by GUSTAV. You will maybe find what is this strange simulation, and how to escape, before GUSTAV kills you.

Thousands of SEB instances were generated before you and died doing the same thing as you, you are the Latest, good luck.

Subtitles available in French, English and Spanish, the game is free with ads, 1$ to remove all of them :)

http://playseb.xyz
You are a simple black cube in a test environment. Find where you are, escape.
Updated on
Sep 16, 2026
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Ratings and reviews

172 reviews
m m
May 3, 2020
Gustav is very similar to Portal, the game is cool. Never felt so much about a black cube before. It's like Castaway all over again. A fun concept. Little hard to get used to the moving style, but i like it. More levels would be nice. And if the frequency of ads rises, then it's not fun anymore. It has been quite okay. If i remember correctly, then they weren't long ones either, so fine by me.
1 person found this review helpful
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A Google user
February 17, 2020
Interesting art style and premise, and might be enjoyable if it weren't for the maddeningly inconsistent and frustrating control scheme that makes basic tasks near impossible. Most of the text remains unreadable throughout the game and it tries to emulate GLaDOS from Portal but its dark humor is hit or miss. No Google play support or achievements. Overall not a great game.
1 person found this review helpful
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A Google user
November 12, 2019
Really fun game, the atmosphere feels a bit like Portal and I like it ! Sometimes the movements are difficult to control perfectly so the cube might not go where you wanted originally. That said when you master them, you can do some crazy stuff which is really satisfying imo
7 people found this review helpful
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What’s new

- Controls improved and added trajectory helper
- Better death
- Levels reports and world stats
- 60FPS
- New locales (IT, DE, PT)
Content rating
Everyone
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App support

About the developer
RMH
hello@romaricmourgues.com
303 RTE DE LA WANTZENAU 67000 STRASBOURG France
+33 9 39 03 44 87