VOI - puzzle game in IOS

1 + 1 = ?

Walkthrough, Guilds, Tips on this special game

Our Site Score

88/100

VOI is a masterclass in 'less is more' design. As a puzzle game, it focuses on a single, fascinating mechanic: the XOR (exclusive or) logic of overlapping shapes. When you place one black shape over another, the overlapping area turns white (disappears). It sounds simple, but the level design quickly evolves into a complex architectural dance of negative space. You aren't just building a shape; you're sculpting it by strategically layering pieces.

The minimalist aesthetic is perfect. There are no timers, no intrusive ads, and no clutter—just you and the geometric challenge. It feels like playing with a digital tangram set that has been upgraded for the modern era. For fans of games like 'Hocus' or 'Kami,' VOI offers that same meditative yet brain-melting quality. It’s the kind of game that makes you feel like a genius when you finally align the last polygon to match the target silhouette.

Reviewed on: Sun May 19 2024
Dinsun Avatar

Dinsun Review

Dinsun. I like this. It’s quiet. No loud music, no flashing lights, just pure logic. The XOR mechanic—black plus black equals white—is simple to understand but becomes mind-bending very quickly. It’s the kind of game that makes you feel smart when you solve it and incredibly stupid for five minutes before that. My only gripe is that it’s quite short; 88 levels can be cleared in a single evening if you have a knack for it. It’s honest, cheap, and does exactly what it says on the tin. We need more of this on the App Store.

Overall Stats

Pros & Cons

  • Elegant, minimalist design
  • Unique and challenging logic mechanic
  • Premium experience with no ads
  • Relatively short duration
  • No hint system for the truly stuck
  • Lacks replay value

Technical Report

Performance: Perfect performance; uses virtually no resources.

Accessibility:

    Audience Fit

    Buy if: You enjoy geometric puzzles and minimalist aesthetics.

    Skip if: You need a story or high-action gameplay to stay engaged.

    Similar Games:
    • Hocus
    • Interlocked

    Reviewer Context

    • Reviewer: Dinsun
    • Hardware: iPhone 13 mini
    • Playtime: 3 hours
    • Status: All 88 levels completed

    The Game

    Available on: iPhone, iPad, iPod

    Version 1.1.4Wed Jul 14 2021

    * bug fix


    • • • Best Games on iPhone; Russia, South Africa, Turkey, Middle East • • •

    Do you think 1 + 1 = 0 is correct? So what do you think about "black + black = white" statement? According to XOR logic, they are correct.

    New, mind-bending, minimal puzzle game with dozens of levels and extra-ordinary design.

    Features:

    • 88 mind-bending levels

    • 11 languages

    • Exclusive for iOS and human brains

    Follow me:

    • https://www.facebook.com/gamebra.inGame

    • https://twitter.com/gamebra_in


    Requires iOS 9.0 or later. Compatible with iPhone 5S, iPhone 6, iPhone 6 Plus, iPhone 6S, iPhone 6S Plus, iPhone SE (1st generation), iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, iPhone XS Max, iPhone XR, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2nd generation), iPhone 12 mini, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone 13, iPhone SE (3rd generation), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17 Pro, iPhone 17 Pro Max, iPhone 17, iPhone Air, iPad Air, iPad Air Wi‑Fi + Cellular, iPad mini 2, iPad mini 2 Wi‑Fi + Cellular, iPad Air 2, iPad Air 2 Wi‑Fi + Cellular, iPad mini 3, iPad mini 3 Wi‑Fi + Cellular, iPad mini 4, iPad mini 4 Wi‑Fi + Cellular, iPad Pro (12.9‑inch), iPad Pro (12.9‑inch) Wi-Fi + Cellular, iPad Pro (9.7‑inch), iPad Pro (9.7‑inch) Wi‑Fi + Cellular, iPad (5th generation), iPad (5th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (2nd generation), iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (10.5‑inch), iPad Pro (10.5‑inch) Wi‑Fi + Cellular, iPad (6th generation), iPad (6th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch), iPad Pro (11‑inch) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (3rd generation), iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular, iPad mini (5th generation), iPad mini (5th generation) Wi‑Fi + Cellular, iPad Air (3rd generation), iPad Air (3rd generation) Wi‑Fi + Cellular, iPad (7th generation), iPad (7th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (2nd generation), iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (4th generation), iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular, iPad Air (4th generation), iPad Air (4th generation) Wi‑Fi + Cellular, iPad (8th generation), iPad (8th generation) Wi‑Fi + Cellular, iPad Pro (11-inch) (3rd generation), iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular, iPad Pro (12.9-inch) (5th generation), iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular, iPad mini (6th generation), iPad mini (6th generation) Wi-Fi + Cellular, iPad (9th generation), iPad (9th generation) Wi-Fi + Cellular, iPad Air (5th generation), iPad Air (5th generation) Wi‑Fi + Cellular, iPad (10th generation), iPad (10th generation) Wi‑Fi + Cellular, iPad Pro (11‑inch) (4th generation), iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular, iPad Pro (12.9‑inch) (6th generation), iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular, iPad Air 11-inch (M2), iPad Air 11-inch (M2) Wi-Fi + Cellular, iPad Air 13-inch (M2), iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4), iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4), iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro), iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16), iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3), iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3), iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro 11-inch (M5), iPad Pro 11-inch (M5) Wi-Fi + Cellular, iPad Pro 13-inch (M5), iPad Pro 13-inch (M5) Wi-Fi + Cellular, iPod touch (6th generation), and iPod touch (7th generation).

    • • • Best Games on iPhone; Russia, South Africa, Turkey, Middle East • • •

    Do you think 1 + 1 = 0 is correct? So what do you think about "black + black = white" statement? According to XOR logic, they are correct.

    New, mind-bending, minimal puzzle game with dozens of levels and extra-ordinary design.

    Features:

    • 88 mind-bending levels

    • 11 languages

    • Exclusive for iOS and human brains

    Follow me:

    • https://www.facebook.com/gamebra.inGame

    • https://twitter.com/gamebra_in


    Ratings & Reviews

    4.6 out of 5 with 226 Counts
    Age Rating 4+

    Screenshots

    VOI - puzzle game screenshot 1VOI - puzzle game screenshot 2VOI - puzzle game screenshot 3VOI - puzzle game screenshot 4VOI - puzzle game screenshot 5VOI - puzzle game screenshot 6VOI - puzzle game screenshot 7VOI - puzzle game screenshot 8VOI - puzzle game screenshot 9VOI - puzzle game screenshot 10

    VOI is a unique mind-bending puzzle game based on the concept of XOR logic. In the world of VOI, when you overlap two black shapes, the overlapping part becomes transparent. Your goal is to replicate a target pattern by moving and rotating various geometric pieces. With 88 levels of increasing difficulty, it offers a pure, minimalist challenge for puzzle enthusiasts who enjoy spatial reasoning and abstract thinking.

    Features

    1

    88 handcrafted levels

    2

    Unique XOR-based puzzle mechanic

    3

    Minimalist black and white art style

    4

    No time limits or pressure

    5

    Relaxing, ambient gameplay

    Tips

    Promotion Videos

    VOI Puzzle Game Android/iOS Gameplay - YouTube

    Related Videos

    News on this game

    Turkish couple pursues the indie mobile game dream with Escher-like Hocus

    They started an indie mobile game studio called GameBra.in and came to town because their game Hocus had been nominated by Casual Connect as one of the best...

    VentureBeat - Fri Oct 13 2017

    Gameplays

    Q&A

    The game uses XOR logic: when two black shapes overlap, the overlapping area turns white.

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