On 0 servers with real players, out of 1 Steam servers that run it now, fakes and empty ones included. Checked 10:06 UTC.
35hp_default is a community map, not one of the maps that come with the game. Servers send it to players from the Workshop when they join.
Over the last 30 days 35hp_default was the #792 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 0 people play it on 0 servers. It is busiest on Saturday around 12:00 UTC and quietest on Monday around 00:00 UTC.
Right now 0, on 0 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 Saturday around 12:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 KNIFE #2 [LT] — CYBERSHOKE.NET (FUN MODE) (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage43,069 players on average
de_dust217,856 players on average
sandstone_fb14,406 players on average
de_mirage_fps6,310 players on average
awp_lego_25,418 players on average
awp_lego_2_fb4,817 players on average
de_mirage_christmas2,845 players on average
<null>1,274 players on average
bhop_emevaelx31,051 players on average
duels_mirage_1x11,007 players on average
de_inferno890 players on average
de_nuke746 players on average