Half-Life: Opposing Force vs Serious Sam 4

Half-Life: Opposing Force and Serious Sam 4 on one hourly Steam concurrent-player chart. Half-Life: Opposing Force has 52 players now; Serious Sam 4 has 59. Same hourly samples as the individual game pages.

Also on the charts: Half-Life: Opposing Force · Serious Sam 4 · Counter-Strike 2 vs Dota 2 · Dota 2 vs PUBG: BATTLEGROUNDS · PUBG: BATTLEGROUNDS vs Bongo Cat · Bongo Cat vs WARDOGS · WARDOGS vs Apex Legends · Apex Legends vs Aniimo · Aniimo vs TBH: Task Bar Hero · TBH: Task Bar Hero vs Valheim