Half-Life: Opposing Force

Source: Steam
App ID: 50
Developer: Gearbox Software
Publisher: Valve
Released: November 1, 1999

Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.

Current players

16 observations from Oct 26 to Oct 28. Latest 61 players at Oct 28 04:27 UTC. Peak 135 at Oct 27 19:27 UTC. No collection gaps in this window.

24h Peak

135

2026 Peak

190

Oct 10 19:27 UTC

All-Time Peak

190

Oct 10, 2026 19:27 UTC

Live Top Seller

Weekly Top Seller

Price

Reviews

96% Positive

24.5K positive, 1.2K negative

Player History


Today	74	-7	-9.1%	79	61
Oct 27	81	+1	+1.2%	135	38
Oct 26	80	-34	-29.9%	115	53
Oct 25	114	-2	-1.6%	158	76
Oct 24	116	+26	+28.2%	155	73
Oct 23	91	+17	+22.7%	125	64
Oct 22	74	-14	-16.4%	132	0
Oct 21	88	+6	+7.3%	127	52
Oct 20	82	+2	+1.9%	125	46
Oct 19	81	-34	-29.6%	116	47
Oct 18	115	-4	-3.3%	162	72
Oct 17	119	+24	+25.6%	158	91
Oct 16	94	+5	+5.7%	150	51
Oct 15	89	+1	+1.1%	134	49
Oct 14	88	-9	-9.1%	137	51
Oct 13	97	-4	-3.8%	135	72
Oct 12	101	-23	-18.4%	155	55
Oct 11	124	-6	-4.6%	168	82
Oct 10	130	+18	+15.8%	190	89
Oct 9	112	+7	+6.7%	168	67
Oct 8	105	-5	-4.8%	153	53
Oct 7	110	+10	+9.6%	167	71
Oct 6	101	-9	-8.1%	148	69
Oct 5	110	-67	-37.9%	166	62
Oct 4	176	Not Available	Not Available	188	188
Sep 30	85	Not Available	Not Available	109	58

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