On 0 servers with real players, out of 11 Steam servers that run it now, fakes and empty ones included. Checked 05:06 UTC.
am_multiverse is an arena map for 1v1 duel servers: many small arenas in one map. It is not one of the maps that come with the game, so servers send it to players from the Workshop when they join.
Over the last 30 days am_multiverse was the #357 map on CS2 community servers, with 7 real players on it at any moment on average - 0% of everyone playing. It ran on about 1 servers with real players at a time. Right now 0 people play it on 0 servers. It is busiest on Saturday around 18:00 UTC and quietest on Tuesday around 03:00 UTC.
Right now 0, on 0 servers from the Steam server list. Over the last 30 days it had 7 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Saturday around 18:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 ARENA | 1v1 #3 [RU] — CYBERSHOKE.NET (ONLY MULTIVERSE) (0 players), CS2 ARENA | 1v1 #36 [GB] — CYBERSHOKE.NET (0 players), CS2 ARENA | 1v1 #20 [KZ] — CYBERSHOKE.NET (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage42,972 players on average
de_dust217,814 players on average
sandstone_fb14,338 players on average
de_mirage_fps6,284 players on average
awp_lego_25,401 players on average
awp_lego_2_fb4,796 players on average
de_mirage_christmas2,833 players on average
<null>1,273 players on average
bhop_emevaelx31,047 players on average
duels_mirage_1x11,015 players on average
de_inferno880 players on average
de_nuke751 players on average