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?
Key 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.
windows Minimum
OS: Windows XP+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 250 MB available space
Directx: Version 9.0
windows Recommended
OS: Windows XP+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 500 MB available space
Directx: Version 9.0
macosx Minimum
OS: OS X 10.6+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 250 MB available space
macosx Recommended
OS: OS X 10.6+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 500 MB available space
linux Minimum
OS: Ubuntu 10.10+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 250 MB available space
linux Recommended
OS: Ubuntu 10.10+
Memory: 2 GB RAM
Graphics: DX9 (shader model 2.0) capabilities
Storage: 500 MB available space
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2025-09-10
National Video Game Day Becomes a Full Week
Gaming has grown into a global phenomenon, so of course it earned its own special day! It first kicked off in the 1990s and was originally marked on July 8th, before officially moving to September 12th. To celebrate this year, we’re running a huge YUPLAY storewide promo! Everyone who places an order between 10.09 CET and 17.09 CET will be automatically entered — and at the end, 21 lucky winners will receive a full refund of their order.
Gamescom 2025 has been a total hit this month, so we dedicate our monthly recap rubric completely to it and the highlights we would like to present from it! Get ready for a grand total of 12 exciting news pieces around the latest hit titles, media as well as hardware and in general what you should be looking around for in the coming months and much more. From Borderlands 4 to Black Ops 7, from Little Nightmares III to Ninja Garden 4, and even some NVIDIA news…
