Opposing Force returns to the same setting as Half-Life, but instead portrays the events from the perspective of a U.S. Marine, one of the enemy characters in the original game. The player character, Adrian Shephard, is sent in to neutralize the Black Mesa Research Facility after a scientific… Summary: IGDB
Mind Score
Fair to the playerAge · PEGI 16
Respect
95
Stimulation
moderate
Has an endingStop anytime
What it exercises
Problem solving
- Steam tag “Puzzle” (64 votes)
Story and reading
- Steam tag “Story Rich” (104 votes)
- From a player review (4 found it helpful)
High confidence · 27 Sept 2026 · Rules-based estimate from the Steam store, player reviews and PEGI/ESRB descriptors. Not a substitute for the official rating or your own judgement. Tap a label to see the evidence.