iO is an abstract physics platformer about size and speed. Grow bigger and smaller in order to solve some of the trickiest puzzles. Reach the exit as quickly as possible and grab a gold medal as your reward!
User reviews:
Overall:
Very Positive (131 reviews) - 85% of the 131 user reviews for this game are positive.
Release Date: Dec 5, 2014

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Reviews

“A highly addictive brain challenging game that will make you feel smarter as you finish each stage.”
4,5/5 – Gaming Cypher

“iO provides an entertaining romp that’s sure to test both your reflexes and brain power.”
Addictive – True PC Gaming

“iO is a smart physics puzzler that requires brainpower and a lot of trial and error.”
Smart – IGN Benelux

Dual thumbstick action

Just Updated

iO is back, bigger and better than ever!


At then end of this week iO will get a huge update. This update includes a big facelift for the game, a lot of new content, a few new mechanics and an extra hard challenge. And all of it will be FREE.

Here is the entire Update in bullet points:
  • 75 new levels: the Irrisitiball Levels. This includes ‘the Impossiball Level Pack’. An extra tough set of levels with fiendishly difficult challenges.
  • Visual enhancements, including background star particles, line shaders, spotlight glow, death animation and speed up sparks.
  • Price drop to €4.99 / $4.99.
  • New mechanics like moving platforms and bicycles.
  • Added instant level restart for controllers.
  • Fixed mutliple level bugs and glitches.

About This Game

iO is a physics platformer in which you control a ball. By growing or shrinking the ball you can influence its speed and weight. Use these mechanics to gain momentum and make your way through the levels. Toy with the laws of physics, solve the puzzles and reach the exit as quickly as possible. Can you win the gold medal in all levels?

Features:

  • 225 challenging levels to solve, including the extra tough Impossiball Levels.
  • Crafty mechanics like inversed gravity, portals, tricycles and movable objects.
  • Leaderboards in all levels to race against your friends and other iO players.
  • Bronze, Silver and Gold medals to earn.
  • Dual Stick controller support.

System Requirements

Windows
Mac OS X
SteamOS + Linux
    Minimum:
    • OS: Windows XP+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • DirectX: Version 9.0
    • Storage: 250 MB available space
    Recommended:
    • OS: Windows XP+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • DirectX: Version 9.0
    • Storage: 500 MB available space
    Minimum:
    • OS: OS X 10.6+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • Storage: 250 MB available space
    Recommended:
    • OS: OS X 10.6+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • Storage: 500 MB available space
    Minimum:
    • OS: Ubuntu 10.10+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • Storage: 250 MB available space
    Recommended:
    • OS: Ubuntu 10.10+
    • Memory: 2 GB RAM
    • Graphics: DX9 (shader model 2.0) capabilities
    • Storage: 500 MB available space

What Curators Say

18 Curators have reviewed this product. Click here to see them.
Customer reviews
Customer Review system updated Sept. 2016! Learn more
Overall:
Very Positive (131 reviews)
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