2K

1–50 of 85 games, sorted by most played now. Players at each game’s latest poll, as of 21:36 UTC; older readings show their time.

Games published by 2K, sorted by Most played now

#	Game	Players now	24h peak	Released	Tags
1	Sid Meier’s Civilization® VIFiraxis Games	31,021	47,898	21 Oct 2016	Strategy, Turn-Based Strategy, Multiplayer
2	Risk of Rain 2Hopoo Games	22,201	22,906	11 Aug 2020	Third-Person Shooter, Action Roguelike, Multiplayer
3	Sid Meier's Civilization® VFiraxis Games	17,683	18,844	21 Sept 2010	Turn-Based Strategy, Strategy, Turn-Based
4	Sid Meier's Civilization® VII−50%Firaxis Games	10,930	12,169	10 Feb 2025	Grand Strategy, City Builder, Strategy
5	NBA 2K27Visual Concepts	10,294	20,893	4 Sept 2026	Sports, Simulation, Basketball
6	Borderlands 4Gearbox Software	5,50718:09 UTC	5,507	11 Sept 2025	FPS, Looter Shooter, Open World
7	NBA 2K26Visual Concepts	4,732	16,334	5 Sept 2025	Sports, Basketball, Simulation
8	XCOM® 2−85%Firaxis Games	4,16914:23 UTC	4,169	5 Feb 2016	Strategy, Turn-Based Combat, Tactical
9	Borderlands 3Gearbox Software	2,102	2,102	13 Mar 2020	RPG, Looter Shooter, Multiplayer
10	Civilization IV: Beyond the SwordFiraxis Games	2,08018:37 UTC	2,080	24 Jul 2007	Strategy, Turn-Based Strategy, 4X
11	Sid Meier's Civilization® III CompleteFiraxis Games	1,98116:37 UTC	1,981	25 Oct 2006	Strategy, Turn-Based Strategy, Turn-Based
12	Borderlands 2Gearbox Software	1,95112:10 UTC	1,951	18 Sept 2012	Loot, Shooter, Action
13	Mafia III: Definitive EditionHangar 13	1,796	1,796	19 May 2020	Crime, Open World, Action
14	WWE 2K26−60%Visual Concepts	1,408	1,408	12 Mar 2026	Sports, Simulation, 3D Fighter
15	Mafia: Definitive EditionHangar 13	1,177	1,260	24 Sept 2020	Open World, Crime, Story Rich
16	NBA 2K25Visual Concepts	1,12400:45 UTC	1,124	4 Sept 2024	Sports, Basketball, Simulation
17	PGA TOUR 2K25HB Studios	1,02723 Oct, 22:27 UTC	1,027	28 Feb 2025	Sports, Golf, Simulation
18	Mafia II: Definitive EditionHangar 13	957	1,020	19 May 2020	Action, Adventure, Crime
19	XCOM: Enemy UnknownFiraxis Games	64523 Oct, 22:23 UTC	645	9 Oct 2012	Turn-Based Strategy, Tactical, Strategy
20	Sid Meier's Civilization® IVFiraxis Games	64323 Oct, 22:27 UTC	643	26 Oct 2006	Strategy, Turn-Based Strategy, Turn-Based
21	Borderlands Game of the Year EnhancedGearbox Software	637	637	31 Aug 2023	FPS, Shooter, Co-op
22	BioShock™ Remastered−75%2K Boston	631	631	15 Sept 2016	FPS, Story Rich, Atmospheric
23	Mafia: The Old CountryHangar 13	576	576	7 Aug 2025	Story Rich, Atmospheric, Stealth
24	Marvel's Midnight SunsFiraxis Games	509	509	2 Dec 2022	Superhero, Turn-Based Tactics, Deckbuilding
25	BioShock InfiniteIrrational Games	44518:14 UTC	445	26 Mar 2013	Action, Shooter, First-Person
26	Sid Meier's Civilization IV: ColonizationFiraxis Games	44518:53 UTC	445	24 Sept 2008	Strategy, Turn-Based Strategy, Turn-Based
27	Mafia II (Classic)2K Czech	43918:45 UTC	439	22 Mar 2011	Action, Open World, Crime
28	Borderlands: The Pre-Sequel2K Australia	43818:47 UTC	438	14 Oct 2014	Co-op, FPS, Action
29	Sid Meier's Civilization®: Beyond Earth™Firaxis Games	43418:48 UTC	434	23 Oct 2014	Strategy, Turn-Based Strategy, Sci-fi
30	Tiny Tina's WonderlandsGearbox Software	37815:51 UTC	378	23 Jun 2022	Loot, Looter Shooter, Adventure
31	WWE 2K25Visual Concepts	30916:35 UTC	309	13 Mar 2025	Simulation, Sports, Wrestling
32	Risk of Rain ReturnsHopoo Games	23515:02 UTC	235	8 Nov 2023	Action Roguelike, Online Co-Op, Multiplayer
33	BioShock™ 2 Remastered2K Marin	17413:36 UTC	174	15 Sept 2016	FPS, Action, Singleplayer
34	Tribes of MidgardNorsfell	172	238	27 Jul 2021	Open World Survival Craft, Online Co-Op, Multiplayer
35	Civilization IV®: WarlordsFiraxis Games	15912:57 UTC	159	7 Apr 2007	Strategy, Turn-Based, 4X
36	Sid Meier's Pirates!Firaxis Games	11712:55 UTC	117	11 Jul 2005	Pirates, Open World, RPG
37	Railroad Tycoon II PlatinumPopTop	11512:10 UTC	115	4 May 2007	Strategy, Management, Trains
38	Homeworld Remastered CollectionGearbox Software	11212:54 UTC	112	25 Feb 2015	Space, Strategy, RTS
39	MafiaIllusion Softworks	10212:10 UTC	102	—	Action, Story Rich, Crime
40	Sid Meier's Railroads!Firaxis Games	7812:58 UTC	78	4 May 2007	Trains, Strategy, Management
41	XCOM®: Chimera SquadFiraxis Games	7513:08 UTC	75	24 Apr 2020	Strategy, Turn-Based Tactics, Turn-Based Strategy
42	WWE 2K24Visual Concepts	7316:30 UTC	73	8 Mar 2024	Sports, Simulation, Wrestling
43	Duke Nukem 3D: 20th Anniversary World TourNerve Software	54	54	12 Oct 2016	FPS, Classic, Gore
44	Bulletstorm: Full Clip EditionPeople Can Fly	4516:18 UTC	45	7 Apr 2017	Action, Gore, FPS
45	Railroad Tycoon 3PopTop	4312:58 UTC	43	4 May 2007	Management, Strategy, Trains
46	X-COM: UFO DefenseMicroProse Software, Inc	4312:10 UTC	43	4 Sept 2008	Strategy, Classic, Turn-Based Strategy
47	BioShock™2K Boston	4212:10 UTC	42	21 Aug 2007	FPS, Atmospheric, Story Rich
48	The Darkness IIDigital Extremes	3910:34 UTC	39	9 Feb 2012	FPS, Action, Gore
49	Homeworld 3Blackbird Interactive	3510:38 UTC	35	13 May 2024	Space, RTS, Strategy
50	Duke Nukem ForeverGearbox Software	33	33	14 Jun 2011	FPS, Action, Nudity

Names come from each game’s Steam store page. Spellings that differ only in capitals, accents or punctuation share a page. About the data