On 0 servers with real players, out of 4 Steam servers that run it now, fakes and empty ones included. Checked 05:46 UTC.
surf_sylvan is a surf map: you slide along sloped ramps instead of running. It is not one of the maps that come with the game, so servers send it to players from the Workshop when they join.
Right now 0 people play it on 0 servers. It is busiest on Sunday around 18:00 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 0 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Sunday around 18:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 SURF #278 [RU] — CYBERSHOKE.NET (TIER 3-4 - MEDIUM) (0 players), CS2 SURF #209 [RU] — CYBERSHOKE.NET (TIER 3-4 - MEDIUM) (0 players), CS2 SURF #163 [RU] — CYBERSHOKE.NET (TIER 3-4 - MEDIUM) (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage42,977 players on average
de_dust217,822 players on average
sandstone_fb14,344 players on average
de_mirage_fps6,286 players on average
awp_lego_25,402 players on average
awp_lego_2_fb4,800 players on average
de_mirage_christmas2,833 players on average
<null>1,273 players on average
bhop_emevaelx31,047 players on average
duels_mirage_1x11,014 players on average
de_inferno880 players on average
de_nuke751 players on average