On 21 servers with real players from the Steam list. Checked 23:24 UTC.
This page counts CS 1.6 servers from the Steam list that stand in the Netherlands, by the IP address of the machine. It is the location of the server, not of its players: many communities rent machines in another country, often in Germany or France, where hosting is cheap and the ping is fine for half of Europe. Servers that only show up on their own non-Steam master lists, and there are many of them in Brazil and in the Russian-speaking world, are not in the Steam list and not counted here. And the time of day matters a lot: in the morning a country can have a few dozen players, in the evening hundreds.
Over the last 30 days servers in the Netherlands had 153 real players at any moment on average - 2.8% of everyone on CS 1.6 Steam servers, #9 of 76 countries. Right now 170 people play on 21 servers there, mostly zombie and classic. The maps with the most players at the moment: de_inferno_cv_2017_new, gg_aztec2011, zm_death_alley. The busiest time is Tuesday around 16:00 UTC, the quietest Wednesday around 10:00 UTC.
185.29.166.172:2701530/32Real players94.249.150.42:2701619/32Real players144.124.254.15:2701519/32Real players80.74.25.70:2701518/32Real players134.19.177.245:2617015/32Real players87.239.129.191:2701713/32Real players151.243.213.95:2703111/32Real players91.212.121.162:2701510/32Real players188.137.236.243:270156/32Real players46.17.102.243:270165/20Real players151.243.213.95:270243/32Real players185.114.49.138:270163/32Real players87.239.129.191:270243/32Real players87.239.129.191:270283/32Real players82.39.186.52:270153/32Real players5.175.174.132:270192/32Real players5.175.174.132:270152/32Real players151.243.213.95:270342/32Real players151.243.213.95:270201/32Real players141.148.240.105:270151/15Real playersRight now 170, on 21 servers. Over the last 30 days it was 153 on average at any moment. This counts servers that stand in the Netherlands, wherever their players live.
By real players right now: CS.PGL32.RO | FREE VIP 20-22 | RANK SYSTEM | CLASSIC (30 players), Infinite | Targetcs-Gaming.org [GunGame] #Europe (19 players), AUABYSS | ZM | Zombie Plague (19 players). The full list is below.
On Tuesday around 16:00 UTC. The grid above shows every hour of the week in your own time zone.