This game is just a prototype. The finished full version of the game will include a lot of features that are not shown in this preview


Jammers' Award - Global Game Jam (January 2018)

Special Mention - PlayStation Jury (January 2018)

Finalist - Valencia Indie Summit (March 2018)

FOS was born in the Global Game Jam 2018 and is now under development.


Controller + headphones (highly recommended)

Alternative: A,W,S,D / arrows + sound


FOS is a game about exploration, challenge and the power of light. 

You will play a long-tailed lightball, born in a world of darkness. Your goal: to bring light. 

Using trial and error, you will discover the nature of your surroundings as you learn.


Currently working hard on improving the looks, sounds and mechanics of FOS aiming for a 2019 release. 

We’re preparing dozens of new levels and worlds that will hopefully blow your mind. 

Thank you all for your support! 

We’ll be uploading new material pretty soon! 


If you like the game, you can share with your friends and follow us on Twitter!

You can also support us here.




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Me gusta mucho la idea de exploración y ha quedado estéticamente perfecto!

¡Gracias Clara! Me alegro de que te haya gustado.


I really love this game. It was hard and fun to play. I love the idea of this game.

¡Thw video is great! Thanks for playing. We are preparing more levels in the future! :)


part of me is like NOOOO but another part is like BRING IT ON


braking takes way too long (most likely due to improper/nonexistent  lag-handling and causes way too many fake wall crashes.)

Hi! Thanks for playing! :)
This is intended behaviour. Inertia is important as the game is designed to be difficult. The flow of light should not be stopped suddenly.
BUT it's possible the game isn't running at good performance in your system because of dinamic lights. Can you tell me your specs?


I'm playing on a intel core 2 running at 2.83GHz with intel q43/45 express chipset running win10 at work.

Thnaks! I'm afraid your hardware can't move properly the game, but  I think it's because it's not optimized for low specs. I'll take that into account for the next release and put graphic options settings for these cases. Thanks a lot and sorry for the inconveniences!