ze_impossible_isr — Counter-Strike 1.6 Zombie Mod
Free Zombie Mod · No download · No install · Instant play
ze_impossible_isr is a Counter-Strike 1.6 Zombie Mod map. It sits in the ze_* family of zombie-escape maps — one of 357 ze_* maps here with a real overview. Across public CS 1.6 servers scanned March–July 2026, ze_impossible_isr was seen running on 2 different servers, with as many as 10 players online at once. The full ze_impossible_isr overview is on this page; play it free right in your browser, no install needed.
Play ze_impossible_isr nowBrowse serversAbout ze_impossible_isr
“Map By Dax Mapper No Bugs No Problems”
| Author | Dax Mapper |
|---|---|
| Category | Zombie Escape |
| Released | September 24, 2021 |
| Downloads | 302 |
| File size | 921 KB |
| License | Map By Dax Mapper |
| Download | ze_impossible_isr on GameBanana |
| Source | GameBanana |
How ze_impossible_isr plays
ze_impossible_isr is a Zombie Mod map. Humans buy weapons and weld or block chokepoints to hold off the horde; zombies use speed and knockback-resistant health to break the line. Survive to the end of the round as a human, or infect everyone as a zombie. On Combat Skirmish it runs directly in your browser through WebAssembly — click Play and you are dropped straight onto a live public server, no Steam account or download required.
Counter-Strike 1.6 servers that play ze_impossible_isr
During our March–July 2026 scan of the public master list, ze_impossible_isr was seen on 2 Counter-Strike 1.6 servers, with as many as 10 players on at once. The servers below ran ze_impossible_isr at some point in that window — ordered by how recently we last saw them on it (shown in Last seen). A server may be on another map right now; clicking Play connects you to it as it is, straight from your browser — no Steam, no download.
| Server | Peak players | Last seen on ze_impossible_isr | |
|---|---|---|---|
| MgharbaGaming Zombie Escape | Multi-Jump x2 | FREE VIP | up to 10 | July 8, 2026 | Play → |
| Diamond-X ! | [VIP - CSO] | — | July 7, 2026 | Play → |
See who's playing ze_impossible_isr right now → — a live list, updated continuously.