Game profile

Half-Life: Opposing Force

An expansion to the original Half-Life that retells the Black Mesa incident from the other side. You play Adrian Shephard, a US Marine sent in to contain the alien invasion, and soon find yourself caught between the aliens and black-ops soldiers. It brings new weapons, enemies and levels. Is it your kind of game?

ExpansionMarine perspectiveBlack MesaPC

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IGDB

75%

404 ratings

Steam:

95%

25,479 reviews

Fits you if

you loved Half-Life and want to see the same events through a soldier's eyes.

Skip it if

you want modern visuals or have not played the original.

Availability

Where to play

Steam

$4.99

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Facts

Platforms: PC
Release date: November 10, 1999
Length: About 6 hours
Difficulty: 3/5 (estimated)
Genres: Shooter · Platform · Puzzle
Themes: Action · Science fiction · Thriller · Warfare
Perspective: First person
Modes: Solo only
Languages: 3 languages
Text in your language: Yes
Steam Deck: Playable
Microtransactions: None

Frequently asked questions

How long is Half-Life: Opposing Force?: About 6 hours to finish the main story.
Which platforms is Half-Life: Opposing Force on?: Half-Life: Opposing Force is available on PC.
Does Half-Life: Opposing Force have co-op?: Yes — Solo only.
Does Half-Life: Opposing Force run on Steam Deck?: Playable
What does Half-Life: Opposing Force cost?: $4.99 on Steam.