Operation: Black Mesa

Indie

Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.

GEM score

24h

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GEM rank

#21,887 of 179,652

Indie rank

#13,738 of 127,570

Scores as of 26 Jul 2026

Free view: this score is three months behind the live score.

Score history (3 to 12 months ago)

Stats through 26 Jul 2026

Average

Peak

Tracked since

26 Jul 2026

The chart appears once there are at least two scored days between 3 and 12 months ago. Subscribe to our Patreon for access

3 to 12 months ago as a table

Daily GEM score from 3 to 12 months ago, newest first
Date	GEM score
Subscribe to our Patreon for access
26 Jul 2026	0

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