On 2 servers with real players, out of 4 Steam servers that run it now, farms and empty ones included. Checked 22:26 UTC.
By its name, cs_assault_1337 is a community edit of the official cs_assault, not the map that comes with the game. Servers send it to players when they join.
Over the last 30 days cs_assault_1337 was the #35 map on CS 1.6 Steam servers, with 15 real players on it at any moment on average - 0.3% of everyone playing. It ran on about 2 servers with real players at a time. Right now 6 people play it on 2 servers, most of them on servers in Germany. It is busiest on Wednesday around 16:00 UTC and quietest on Wednesday around 10:00 UTC.
Right now 6, on 2 servers from the Steam server list. Over the last 30 days it had 15 real players on average at any moment. Fake servers and bots are not counted.
On Wednesday around 16:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: Bad Boy'z |CoD:MW2| [Free Premium 22h-11h] (3 players), Arab ~ Gamers | Nablus Gaming Classic #1 (3 players), LosMancosdelCS 1.6 (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_dust21,620 players on average
de_inferno204 players on average
de_dust2_2x2116 players on average
de_aztec88 players on average
fy_snow78 players on average
de_nuke69 players on average
de_dust59 players on average
cs_assault53 players on average
de_mirage50 players on average
de_train46 players on average
fy_pool_day45 players on average
zm_foda42 players on average