Game Details
- Title:
- Half-Life: Opposing Force
- Year Released
- 1999
- Developer:
- Valve Corporation
- Platform:
- PC
- Gaming Engine:
- Source
- Online Service:
- N/A
- Official Site:
- N/A
- Other Reference Sites:
- N/A
This page was updated: Saturday, Feburary 20th 2021 at 1:00 pm Central Time
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