On 1 servers with real players, out of 3 Steam servers that run it now, fakes and empty ones included. Checked 05:16 UTC.
kz_isuper is a KZ (climb) map: you jump your way to the end as fast as you can. 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 kz_isuper was the #664 map on CS2 community 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 1 people play it on 1 servers, most of them on servers in China. It is busiest on Sunday around 13:00 UTC and quietest on Tuesday around 02:00 UTC.
Right now 1, on 1 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, and Valve matchmaking is not in the list.
On Sunday around 13:00 UTC. The grid above shows every hour of the week in your own time zone.
The busiest right now: 【HIME】CS2KZ-1 台州BGP 全球图 | Tier 6(10) (1 players), Praetor KZ | EU #1 (0 players), CS2 KZ #150 [KZ] — CYBERSHOKE.NET (TIER 4-5 - MEDIUM) (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_mirage_fps6,328 players on average
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awp_lego_2_fb4,837 players on average
de_mirage_christmas2,842 players on average
<null>1,271 players on average
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duels_mirage_1x11,007 players on average
de_inferno900 players on average
de_nuke771 players on average