Valve Corporation^* · Valve^*

Portal 2^*

2011^* science fiction video game^* · post-apocalyptic video game^* · puzzle video game^* +3^*

Where and when.

2011-04-19 · Xbox 360^*
Release date
2011-04-19^*
Date precision
Exact date^*
Platform
Xbox 360^*
2011-04-19 · macOS^*
Release date
2011-04-19^*
Date precision
Exact date^*
Platform
macOS^*
2011-04-19 · PlayStation 3^*
Release date
2011-04-19^*
Date precision
Exact date^*
Platform
PlayStation 3^*
2011-04-18 · Microsoft Windows^*
Release date
2011-04-18^*
Date precision
Exact date^*
Platform
Microsoft Windows^*
2011-04-19 · Microsoft Windows^*
Release date
2011-04-19^*
Date precision
Exact date^*
Platform
Microsoft Windows^*
2014-02-26 · Linux^*
Release date
2014-02-26^*
Date precision
Exact date^*
Platform
Linux^*
2011-04-18 · Linux^*
Release date
2011-04-18^*
Date precision
Exact date^*
Platform
Linux^*
2011-04-18 · Mac OS^*
Release date
2011-04-18^*
Date precision
Exact date^*
Platform
Mac OS^*

* Provisional data