On 0 servers with real players, out of 21 Steam servers that run it now, fakes and empty ones included. Checked 06:16 UTC.
am_dust2 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_dust2 was the #168 map on CS2 community servers, with 29 real players on it at any moment on average - 0% of everyone playing. It ran on about 6 servers with real players at a time. Right now 0 people play it on 0 servers. It is busiest on Wednesday around 20:00 UTC and quietest on Wednesday around 22:00 UTC.
Right now 0, on 0 servers from the Steam server list. Over the last 30 days it had 29 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 ARENA | 1v1 #7 [RU] — CYBERSHOKE.NET (0 players), CS2 DUELS | 1v1 #519 [RU] — CYBERSHOKE.NET (ARENA MAPS) (0 players), CS2 DUELS | 1v1 #77 [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_mirage42,985 players on average
de_dust217,825 players on average
sandstone_fb14,353 players on average
de_mirage_fps6,290 players on average
awp_lego_25,403 players on average
awp_lego_2_fb4,803 players on average
de_mirage_christmas2,835 players on average
<null>1,273 players on average
bhop_emevaelx31,048 players on average
duels_mirage_1x11,012 players on average
de_inferno886 players on average
de_nuke750 players on average