Co-op puzzle · Valve · 2011
Portal 2
Two robots, four portals and some of the cleverest co-op puzzles ever designed. Still brilliant fifteen years on.
4.8Crew score out of 5Easy-going

What you do
Each player has a portal gun. You place portals on walls, floors and ceilings to move yourselves, boxes and lasers through test chambers. The co-op campaign is separate from the solo story and is built entirely for two.
Who it suits
Two friends who enjoy thinking out loud together. No fast reactions required, just patience and good pointing.
Point, do not explain
The ping tool lets you mark where a portal should go and even show a countdown. It is the quickest way to share an idea without a long explanation.
A separate co-op story
The co-op campaign has its own robots and its own story told through the same sharp humour. You do not need to have played the solo game first.
Cheap and runs anywhere
It runs on almost any PC and is often on sale for a few pounds. There is no easier recommendation for two friends with laptops.
On deck
- Brilliant puzzle design
- Very cheap
- Runs on almost any computer
Below deck
- Only two players
- Ends once the puzzles are solved
Verdict
The perfect first co-op game for two friends who like to think.
Tested with crews and updated on 27 October 2026. Prices, platforms and features change with updates; the official page has the latest.