PC / Mac / Linux

iO Steam Key

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!

Windows PCApple MacLinux  Arcade & Indie
$4.99 -90% $0.48 To the Shop-Page

39 Steam Achievements

Freeloader
Freeloader

Complete all trial levels

Lets get this party started
Lets get this party started

Unlock the full game

10 down, 140 to go
10 down, 140 to go

Play 10 levels

Keep on rollin'
Keep on rollin'

Play 25 levels

Life gets nifty after fifty
Life gets nifty after fifty

Play 50 levels

Player
Player

Play 75 levels

100 Big Ones
100 Big Ones

Play 100 levels

Almost there...
Almost there...

Play 125 levels

Show-off
Show-off

Play 150 levels

First Blood
First Blood

Win a gold medal

Bronze Beauty
Bronze Beauty

Win 10 bronze medals

Silver Stallion
Silver Stallion

Win 10 silver medals

Gold grabber
Gold grabber

Win 10 gold medals

First Checkpoint
First Checkpoint

Complete level pack 1

Round 2
Round 2

Complete level pack 2

Three times a charm
Three times a charm

Complete level pack 3

Free-four-all
Free-four-all

Complete level pack 4

Five-a-ball
Five-a-ball

Complete level pack 5

Six Pack
Six Pack

Complete level pack 6

On a roll
On a roll

Collect 25 medals

Ballseye
Ballseye

Collect 50 medals

Over the hill
Over the hill

Collect 75 medals

Mad Medal Collector
Mad Medal Collector

Collect 100 medals

Prize Hungry
Prize Hungry

Collect 125 medals

Bronze Stud
Bronze Stud

Collect at least a Bronze medal in 150 levels

Silver Fox
Silver Fox

Collect at least a Silver medal in 150 levels

Gold Digger
Gold Digger

Collect at least a Gold medal in 150 levels

Big Shot
Big Shot

Expand your ball 100 times

Expandaball
Expandaball

Expand your ball 1000 times

Hey, big expander
Hey, big expander

Expand your ball 10000 times

The little man
The little man

Shrink your ball 100 times

Mini me
Mini me

Shrink your ball 1000 times

Little big adventure
Little big adventure

Shrink your ball 10000 times

Impeccaball ride
Impeccaball ride

Collect a medal in all Impeccaball levels

Incrediball ride
Incrediball ride

Collect a medal in all Incrediball levels

Impossiball ride
Impossiball ride

Collect a medal in all Impossiball levels

Impeccaball play
Impeccaball play

Complete all Impeccaball levels

Incrediball play
Incrediball play

Complete all Incrediball levels

Impossiball play
Impossiball play

Complete all Impossiball levels

  • Single-Player
  • Steam Achievements
  • Full Controller Support
  • Steam Trading Cards
  • Steam Cloud
  • Stats
  • Steam Leaderboards