On 2 servers with real players, out of 5 Steam servers that run it now, fakes and empty ones included. Checked 18:17 UTC.
am_kingdom 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_kingdom was the #743 map on CS2 community servers, with 2 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 4 people play it on 2 servers, most of them on servers in Russia and Lithuania. It is busiest on Wednesday around 20:00 UTC and quietest on Monday around 02:00 UTC.
Right now 4, on 2 servers from the Steam server list. Over the last 30 days it had 2 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Wednesday around 20:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 DUELS | 1v1 #105 [RU] — CYBERSHOKE.NET (ARENA MAPS) (2 players), CS2 DUELS | 1v1 #267 [LT] — CYBERSHOKE.NET (ARENA MAPS) (2 players), CS2 DUELS | 1v1 #253 [RU] — CYBERSHOKE.NET (ARENA MAPS) (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage43,391 players on average
de_dust217,971 players on average
sandstone_fb14,482 players on average
de_mirage_fps6,350 players on average
awp_lego_25,460 players on average
awp_lego_2_fb4,843 players on average
de_mirage_christmas2,864 players on average
<null>1,275 players on average
bhop_emevaelx31,058 players on average
duels_mirage_1x11,023 players on average
de_inferno891 players on average
de_nuke748 players on average
RU
LT