iO

iO cover art -84%
Genres
Action, Indie, Racing
Released
5 Dec, 2014
Developer
Gamious
Publisher
Gamious
Age rating
PEGI 3

Where will you play?

4 stores compared

  1. KinguinBest priceSteam key · Global -84% $0.79 $4.99 Get Deal
  2. EnebaSteam key · Global -82% $0.90 $4.99 Get Deal
  3. KinguinSteam key · Europe -48% $2.61 $4.99 Get Deal
  4. Steam $4.99 Get Deal

iO price history

£0.59 today90-day low £0.59 (26 Oct 2026)Lowest recorded £0.5990-day average £0.59

£0.53£0.59£0.65 26 Oct 2026Today £0.53£0.59£0.65 26 Oct 2026Today

Today's price is the lowest we've seen in the last 90 days. Cheapest UK-working PC key across the stores we compare, any edition; tracked since 26 Oct 2026.

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.

Trailer

Screenshots

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Screenshot
Use the ← → keys

PC 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

iO prices: questions & answers

What is the cheapest iO price for PC?

The cheapest iO PC key right now is £0.59 at Kinguin, 84% below the usual price. We compare 4 offers from 3 stores for PC, and prices update at least twice a day.

Cheapest price today: £0.59 at Kinguin (84% off, usually £4.29). We compare 3 stores for iO, and prices update at least twice a day. Prices can change; the store's checkout price is final. Platform and region details come from each store's listing; the store's product page is final. Zemly may earn a commission if you buy through links on this site, at no extra cost to you (affiliate disclosure).