Steam in December 2015

The month’s most played games by average concurrent players, with the change on November 2015.

Biggest risers

Most players gained on the month before, among games with 1,000+ players then.

Launched this month

Games whose first months on Steam started here, by players at launch.

Top 50 of December 2015

#	Game	Avg. players	Peak	Change	Was
1	Dota 2	573,344	999,452	+6.3%	#1
2	Counter-Strike: Global Offensivenow Counter-Strike 2	377,447	823,694	+4.6%	#2
3	Fallout 4	94,136	201,635	-58%	#3
4	Team Fortress 2	52,973	82,824	+1.6%	#4
5	Grand Theft Auto V	43,875	84,558	+27%	#5
6	Sid Meier's Civilization® V	38,342	69,206	+24%	#7
7	Warframe	33,254	58,502	+56%	#11
8	Garry's Mod	32,257	65,324	+22%	#8
9	ARK: Survival Evolved	32,093	55,946	-2.3%	#6
10	Clicker Heroes	24,805	35,716	+14%	#10
11	Terraria	19,534	37,821	+38%	#15
12	Arma 3	18,762	38,659	+21%	#13
13	Rust	18,474	38,110	+41%	#18
14	Call of Duty®: Black Ops III	17,367	37,374	-30%	#9
15	Unturned	17,261	33,157	+16%	#14
16	Counter-Strike	14,655	27,926	+5.9%	#16
17	The Binding of Isaac: Rebirth	14,211	23,397	-29%	#12
18	PAYDAY 2	13,089	28,093	-4.2%	#17
19	Euro Truck Simulator 2	11,525	30,310	+34%	#21
20	War Thunder	11,284	23,811	-1.8%	#19
21	Left 4 Dead 2	10,905	22,646	+21%	#20
22	Path of Exile	9,700	22,345	+104%	#36
23	Europa Universalis IV	9,665	18,518	+40%	#28
24	The Witcher 3: Wild Hunt — Remastered	8,967	18,536	+44%	#31
25	Just Cause™ 3	8,687	23,459	new	—
26	Borderlands 2	8,445	15,408	+3.2%	#23
27	Tom Clancy's Rainbow Six Siege	7,941	18,130	new	—
28	Counter-Strike: Source	7,907	14,860	+4.9%	#27
29	Total War: ROME II - Emperor Edition	7,819	14,266	+16%	#29
30	SMITE®	7,737	14,885	-1.4%	#25
31	Trove	7,630	14,565	-5.1%	#24
32	DayZ	7,440	17,740	+70%	#39
33	AdVenture Capitalist	7,277	17,900	-6.3%	#26
34	7 Days to Die	6,981	16,399	+111%	#47
35	Age of Empires II (Retired)	6,444	14,351	-1.8%	#30
36	Mount & Blade: Warband	6,363	14,036	+22%	#34
37	Elite Dangerous	6,022	15,316	+45%	#41
38	Total War: ATTILA	5,613	13,291	+89%	#53
39	Fallout: New Vegas	5,266	10,787	-36%	#22
40	XCOM: Enemy Unknown	5,264	11,608	+66%	#49
41	Cities: Skylines	5,225	12,177	+4.8%	#35
42	Don't Starve Together	5,164	12,508	+49%	#44
43	Space Engineers	4,945	9,621	-19%	#32
44	Arma 2: Operation Arrowhead	4,895	9,447	+10%	#37
45	Company of Heroes 2	4,895	9,229	+11%	#38
46	METAL GEAR SOLID V: THE PHANTOM PAIN	4,725	8,629	-17%	#33
47	Don't Starve	4,436	8,025	+159%	#72
48	Killing Floor 2	4,292	14,529	+205%	#85
49	Dying Light	4,243	11,798	+54%	#54
50	FINAL FANTASY XIV Online	4,159	6,638	-1.3%	#40

Their best month ever

Games that never had more players on average than this month, after two years or more.

Average and peak concurrent players per month from SteamCharts, used with permission; a year is ranked by its average over the months we have. Covers every game with live players today and every notable game (with a Wikipedia article) even if nobody plays it any more.