On 0 servers with real players, out of 1 Steam servers that run it now, farms and empty ones included. Checked 03:03 UTC.
zm_303 is a zombie map, made for Zombie Plague and similar mods. It is not one of the maps that come with the game, so servers send it to players when they join.
Over the last 30 days zm_303 was the #275 map on CS 1.6 Steam 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 Tuesday around 21:00 UTC and quietest on Monday around 03:00 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.
On Tuesday around 21:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: LSP Server CS 1.6 (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
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de_inferno207 players on average
de_dust2_2x2116 players on average
de_aztec89 players on average
fy_snow78 players on average
de_nuke71 players on average
de_dust59 players on average
cs_assault53 players on average
de_mirage52 players on average
de_train46 players on average
fy_pool_day45 players on average
zm_foda42 players on average