Ten maps · Desktop browser
Play BO1 Zombies Online
Find the map you actually want to play, check which ones support Hell mode, and fix common launch problems. The game opens on its creator’s site.
Direct links below open the selected map on vel.gg. A desktop keyboard and mouse are required.
Choose with a reason
Which map should you open?
These are quick routes into the ten maps in the creator’s menu. They describe the setting and mechanics shown there; they are not a difficulty ranking.
The full selection
All ten BO1 Zombies maps
- Hell mode available
01 / 10
Kino der Toten
An abandoned theater
The map selected by default on the creator’s mission screen. Start here if you want to follow the game’s own first choice.
Play Kino der Toten on vel.gg ↗ - Hell mode available
02 / 10
Five
The Pentagon
The Pentagon is under attack, and the mission description calls out DEFCON 1. Pick this for a government-facility setting.
Play Five on vel.gg ↗ - Hell mode available
03 / 10
Der Riese
The Giant
Return to the Zombies story’s heartland. The creator’s menu frames this map around the master plan and its possible end.
Play Der Riese on vel.gg ↗ - Hell mode available
04 / 10
Nacht der Untoten
A small bunker
Hold out in the original bunker against wave after wave. A good pick when you want a compact survival setting.
Play Nacht der Untoten on vel.gg ↗ - Hell mode available
05 / 10
Verrückt
An abandoned asylum
The mission begins with your squad split apart inside the asylum. Choose it for that tense opening premise.
Play Verrückt on vel.gg ↗ - Hell mode available
06 / 10
Shi No Numa
A swamp outpost
Open huts and cross the marsh on zip lines. This is the pick for a swamp map with movement between outposts.
Play Shi No Numa on vel.gg ↗ 07 / 10
Ascension
A Soviet launch facility
Lunar landers, monkeys and a rocket give this facility a very different set of landmarks.
Play Ascension on vel.gg ↗08 / 10
Call of the Dead
A frozen coast
Move between a lighthouse and stranded ship while George A. Romero is on the prowl.
Play Call of the Dead on vel.gg ↗09 / 10
Shangri-La
A jungle temple
Traps, geysers and a minecart make the environment itself part of the challenge.
Play Shangri-La on vel.gg ↗10 / 10
Moon
Area 51 to the Moon
Start at Area 51, then travel to a lunar base with low gravity and no air outside.
Play Moon on vel.gg ↗
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Optional challenge
How Hell mode works
On the creator’s mission-select screen, turn Hell mode on before choosing a supported map. It starts on round 100, allows up to 300 zombies at once, and removes perk machines. The toggle applies to Kino, Five, Der Riese, Nacht, Verrückt and Shi No Numa. Ascension, Call of the Dead, Shangri-La and Moon start normally even when the toggle is on.
The direct map links above open normal mode. Use the full menu to choose Hell mode first.
Open mission select ↗Before you launch
What the browser game needs
- 1. A desktop browser. The creator’s check accepts current desktop Chrome, Edge or Firefox and blocks phones and tablets.
- 2. Graphics and memory. Keep hardware acceleration on. The game checks for WebGL2 and asks for a 1.5 GiB game heap plus room for graphics and sound.
- 3. Browser storage. Only the map you select begins downloading. The game checks free storage and can resume saved partial files after an interrupted download.
What happens after you choose a map?
The map page checks your browser, downloads that map’s files, then shows a loading bar and a click-to-start prompt. Before starting, open Options to adjust mouse sensitivity, master volume or fullscreen. You do not need the GitHub source repository or a separate installer for this browser version.
Use the message you see
If the game will not start
These fixes match messages in the creator’s current browser checks and loading screen.
- “Desktop required”
- The game blocks mobile browsers. Open the link on a computer with a keyboard and mouse.
- “Shared memory unavailable”
- Open the HTTPS game link directly in a current desktop Chrome, Edge or Firefox tab. The game needs browser isolation and shared memory.
- “Unsupported graphics” or “WebGL2 unavailable”
- Turn on graphics acceleration in your browser, restart it, and update your graphics driver if the message remains.
- “Not enough storage” or “Download interrupted”
- Free browser storage or allow this site to save files, then use Try again or Resume. The creator’s page says saved partial files can resume.
- “Out of memory”
- Close other tabs and apps, then reload in a 64-bit desktop browser. The game asks for a 1.5 GiB heap plus graphics and sound memory.
About the source code
The linked GitHub repository contains decompiled Windows C++ engine code for modding and local builds. The playable browser version is on vel.gg. These are different ways to explore the project; the source repository is not a browser game download.
Checked October 10, 2026. This independent fan guide is not affiliated with Activision, Treyarch or the browser game creator. Game availability and requirements can change on the creator’s site.
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