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VOI header art

VOI

Do you think 1 + 1 = 0 is correct? So what do you think about "black + black = white" statement?

Steam Page
Release
November 7, 2016
9 years and 269 days ago
Steam Reviews
Very Positive841 reviews94.2%

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Game contextLatest: IGF Team
ContextThe evidence factors used to assess whether this game belongs on IndieGame.Fan.Status
Notes
Latest Contributor: IGF TeamEdit notes
Updated: Jul 13, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 13, 2026Publisher scaleThe operating scale of the game's publisher.
Updated: Jul 13, 2026Publisher statusHow the game's publishing relationship is classified.
Search Google: How is VOI and Yunus Ayyildiz funded?FundingThe known source of funding behind the game.
Updated: Jul 13, 2026Creative controlWho appears to retain creative control of the game.
Updated: Jul 13, 2026Release statusWhether and how the game has been released.

Media

6 items

About the Game

Do you think 1 + 1 = 0 is correct? So what do you think about "black + black = white" statement?

VOI is relaxing minimal puzzle game based on XOR logic;

0+0=0
1+0=1
0+1=1
1+1=0

VOI gives you a few draggable geometric shapes (triangle, square, rhombus, parallelogram etc.) to reach target shape. That's all. Do you think that the easy?

* One page game (no start button, no exit button)
* Cool music and fx
* Use mouse wheel to scroll levels