On 18 servers with real players from the Steam list. Checked 21:24 UTC.
most played now: surf_ski_2
Surf comes from a quirk of the engine: on a steep slope you slide instead of falling, and holding a strafe key turns the slide into flight. Surf maps are long ramps over empty space, and you get to the end - or to the other team - by riding them.
Over the last 30 days Surf servers had 40 real players at any moment on average - 0.7% of everyone on CS 1.6 Steam servers, #10 of 14 game modes. Right now 54 people play Surf on 18 servers, most of them on servers in Germany and Switzerland. The maps with the most players at the moment: surf_ski_2, surf_hasty3, surf_kns_final. The busiest time is Friday around 17:00 UTC, the quietest Wednesday around 10:00 UTC.
185.107.96.128:270156/32Real players45.91.92.225:270205/32Real players45.91.92.225:270155/32Real players188.93.140.192:270154/32Real players5.188.238.15:270154/20Real players51.77.57.46:270214/32Real players5.188.238.59:270154/20Real players185.107.96.128:270253/32Real players185.107.96.128:270203/32Real players63.141.245.250:270203/32Real players145.239.20.145:271303/16Real players63.141.245.250:270252/32Real players151.243.213.95:270222/32Real players45.129.181.166:280752/13Real players188.93.140.192:270201/32Real players63.141.245.250:270151/32Real players76.19.164.195:270151/32Real players81.181.244.45:270151/24Real playersRight now 54, on 18 servers from the Steam server list. Over the last 30 days it was 40 on average at any moment. Fake servers and bots are not counted.
By real players right now: Surf Gateway » Surf_ski_2 // NO JAIL + LEVELS + SKINS (6 players), Surf Gateway » Speedrun // Talented [Rank 400] (5 players), Surf Gateway » Speedrun // Europe #2 (5 players). The full list is below, and every server has a page with its history.
On Friday around 17:00 UTC. The grid above shows every hour of the week in your own time zone.