← Half-Life: Opposing Force

9 of 9 entries

1. 8 Oct 2019
   Half-Life: Opposing Force update releasedUpdate
2. 21 Aug 2018Live now
   Half-Life: Opposing Force update releasedUpdate
3. 10 Jul 2017Live now
   In-game event
4. 31 Jul 2013Live now
   In-game event
5. 23 Apr 2013Live now
   In-game event
6. 3 Apr 2013Live now
   In-game event
7. 3 Apr 2013Live now
   In-game event
8. 1 Apr 2013Live now
   In-game event
9. 30 Mar 2013Live now
   In-game event

Data from Steam — Steam Web API Terms of Use. Last updated 19 Aug 2026.