Black Ops Zombies
Black Ops Zombies
⚠ Original link taken down (Legal / DMCA)
The vel.gg host returned HTTP 451 in October 2026. The bo1z WebAssembly port is no longer playable online; working alternatives are below.
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About Black Ops Zombies
Status update (vel.gg): The vel.gg host returned HTTP 451 (Unavailable For Legal Reasons) in October 2026. The browser port is no longer playable online; working zombie and shooter alternatives are listed below. Looking for something playable right now? Try Shell Shockers, Ragdoll Archers or browse all AI-made games.
Round-based zombie survival in a browser tab. Hold the barricades, buy weapons off the wall and see how many rounds you last.
The vel.gg/bo1z host now returns an HTTP 451 error notice. This page is kept as an archive and status tracker documenting the browser port; it is not a playable launcher.
Before the takedown, the port offered solo round-based zombie survival across ten maps including Kino der Toten, Five, Der Riese, and Nacht der Untoten, with an optional Hell mode starting at round 100. Browse the working browser shooters and zombie survival games above for playable alternatives.
About the game
Before it was taken offline, the port was reported to be based on MisaDev4's open-source 'bo1-zombies-decompiled' project running through WebAssembly. In October 2026, the vel.gg host began returning HTTP 451 (Unavailable For Legal Reasons), meaning the host is unavailable for legal reasons; the response alone does not identify the claimant. The original browser port is no longer playable online.
Quick facts
- Host returned HTTP 451 (Unavailable For Legal Reasons) in October 2026
- Unofficial port; original Call of Duty assets belong to Activision
- Status page only: OttersPlay does not host the game or files
Questions about Black Ops Zombies
Why is Black Ops Zombies no longer working?
In October 2026, the vel.gg/bo1z host began returning HTTP 451 (Unavailable For Legal Reasons), meaning the host is unavailable for legal reasons; that response alone does not identify the claimant. OttersPlay does not host mirrors of the taken-down port.
Which zombie maps were included before the takedown?
Solo round-based zombies originally offered ten maps: Kino der Toten, Five, Der Riese, Nacht der Untoten, Verrückt, Shi No Numa, Ascension, Call of the Dead, Shangri-La and Moon.
What was Hell mode?
An optional Hell mode started players at round 100 with up to 300 zombies and no perk machines.
Who made the original browser port?
The developer is anonymous. Retrogems reported it was based on MisaDev4's open-source 'bo1-zombies-decompiled' project. It was an unofficial port of Activision assets.
An independent browser port of a classic game, not an AI original. OttersPlay does not host game files and is not affiliated with the original publisher. Some projects require files from your own copy.
Project note: The host server returned HTTP 451 in October 2026 and the game cannot be launched. Use the verified alternative games below to play active browser shooters.
Sources: gamerant.com, retrogems.fr. Last checked .