iO
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!
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
About iO
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.
Game details
Game details
Age ratings
Game modes
Languages
Features
iO price history
Lowest tracked price: £0.60 (Jul 16, 2026) · current best: £0.61 across 5 stores.
iO player count & reviews
81% positive reviews all-time · 1 peak players in the last 30 days.
iO — frequently asked questions
Where can I buy iO at the cheapest price?
Right now the cheapest offer for iO is £0.61 at Gamivo. KingsPrice compares 5 offers from 5 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price iO has ever been?
The lowest price KingsPrice has tracked for iO is £0.60 (recorded on Jul 16, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play iO?
iO peaked at 1 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Is it safe to buy a iO Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get iO at a discount?
Create a free price alert on this page and KingsPrice will email you when iO drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
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
