On 0 servers with real players, out of 8 Steam servers that run it now, fakes and empty ones included. Checked 18:17 UTC.
mg_lego_multigames is a minigames map: several small games in one. It is not one of the maps that come with the game, so servers send it to players from the Workshop when they join.
Over the last 30 days mg_lego_multigames was the #1156 map on CS2 community servers, with <1 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 Saturday around 15:00 UTC and quietest on Monday around 01:00 UTC.
Right now 0, on 0 servers from the Steam server list. Over the last 30 days it had <1 real players on average at any moment. Fake servers and bots are not counted, and Valve matchmaking is not in the list.
On Saturday around 15:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: CS2 MINIGAMES #12 [UA] — CYBERSHOKE.NET (FUN MAPS) (0 players), CS2 MINIGAMES #9 [PL] — CYBERSHOKE.NET (FUN MAPS) (0 players), CS2 MINIGAMES #5 [RU] — CYBERSHOKE.NET (FUN MAPS) (0 players). The full list is under "Servers running it now", and every server has its own page with its history.
de_mirage43,391 players on average
de_dust217,971 players on average
sandstone_fb14,482 players on average
de_mirage_fps6,350 players on average
awp_lego_25,460 players on average
awp_lego_2_fb4,843 players on average
de_mirage_christmas2,864 players on average
<null>1,275 players on average
bhop_emevaelx31,058 players on average
duels_mirage_1x11,023 players on average
de_inferno891 players on average
de_nuke748 players on average