How much revenue did Half-Life: Opposing Force make?

$2.0M–$5.5M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Half-Life: Opposing Force sell?

1.5M to 2.4M copies, based on its 29k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.5M–2.4M; $2.0M–$5.5M after Steam's cut $3.7M–$8.5M before the cut; from 29k reviews (Overwhelmingly Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

We don't have enough similar games to place Half-Life: Opposing Force in its genre yet, so these are its own numbers, not a genre read.

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