Valve Corporation^* · Valve^*

Day of Defeat: Source^*

2005^* first-person shooter^* · shooter game^*

Where and when.

2005-09-26 · Microsoft Windows^*
Release date
2005-09-26^*
Date precision
Exact date^*
Platform
Microsoft Windows^*
2013-03-13 · Linux^*
Release date
2013-03-13^*
Date precision
Exact date^*
Platform
Linux^*
2010-07-13 · macOS^*
Release date
2010-07-13^*
Date precision
Exact date^*
Platform
macOS^*

* Provisional data