On 1 servers with real players, out of 2 Steam servers that run it now, fakes and empty ones included. Checked 21:46 UTC.
am_cathedral 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_cathedral was the #1614 map on CS2 community servers, with <1 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 2 people play it on 1 servers, most of them on servers in Russia. It is busiest on Tuesday around 16:00 UTC and quietest on Monday around 00:00 UTC.
Right now 2, on 1 servers from the Steam server list. Over the last 30 days it had <1 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Tuesday around 16:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 ARENA | 1v1 #21 [RU] — CYBERSHOKE.NET (2 players), CS2 ARENA | 1v1 #18 [SE] — CYBERSHOKE.NET (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage43,300 players on average
de_dust217,998 players on average
sandstone_fb14,474 players on average
de_mirage_fps6,337 players on average
awp_lego_25,450 players on average
awp_lego_2_fb4,841 players on average
de_mirage_christmas2,872 players on average
<null>1,266 players on average
bhop_emevaelx31,060 players on average
duels_mirage_1x11,026 players on average
de_inferno879 players on average
de_nuke746 players on average
RU