Call of Duty: Mobile zombies is returning, but not as you remember it

Call of Duty: Mobile Undead Siege
(Image credit: Activision)
Activision Blizzard lawsuit

Publisher Activision Blizzard, responsible for the game this article refers to, is currently embroiled in ongoing litigation in regards to claims reporting a workplace culture that allegedly enabled acts of sexual harassment, abuse and discrimination. Read our Activision Blizzard lawsuit timeline of events for ongoing coverage of the events.

Early adopters of Call of Duty: Mobile will remember that the hugely-popular mobile game launched with a zombies mode, adapted from the Black Ops series of games. Only one map was available, and more were expected - but then the zombies mode was abruptly removed from the game in March 2020.

At the time, the developers stated "the mode just didn’t reach the level of quality that we desire", but no word was given on when, or if, we'd be able to slay waves of zombies on our smartphones again.

That's changed, and we now know that Call of Duty: Mobile will get zombies once again, sometime in 2021, though not in the classic wave-based style we expected. Instead, we'll be seeing zombies return via the Battle Royale mode, though we don't know too much about this upcoming update, in a mode called Undead Siege.

Below, we've collected all we know so far about the Call of Duty: Mobile zombies' update, so you can stay in the loop.

When will Call of Duty: Mobile zombies return?

When first announced in July 2021, Undead Siege was given a rough '2021' release window - that's quite a long stretch of time. However, some fans think the mode could launch alongside Call of Duty: Mobile's Season 6.

Season 6 of the game - not actually the sixth season, we should add - is set to launch on July 30. 

Early promotion for Call of Duty: Mobile Season 6 doesn't hint towards a new zombies mode at all though, and some fans think Undead Siege could launch later. Season 7 of the game would begin in late September, and would therefore encompass the Halloween season, which would be a perfect thematic fit for the mode.

Call of Duty: Mobile Season 2

(Image credit: Activision)

What will Call of Duty: Mobile zombies be like?

As we've said, Undead Siege isn't the wave-based classic style of Call of Duty zombies you're used to - instead, it uses the Battle Royale map.

In Undead Siege, you're dropped into the map in squads, and have to survive five 'nights' as a team - how long that equates to in actual real-life time, isn't clear. As you'd expect, each night brings tougher hordes of enemies.

You drop in with one of your custom loadouts from the multiplayer mode, but apparently you also need to scavenge equipment and tools to keep yourself in the game.

That's because Undead Siege also has elements from tower defense-style games, as you need to build defenses and turrets to fortify a base. 

How this side of the mode actually works isn't clear at all, and we're expecting quite the learning curve when playing this mode for the first time.

Will the 'classic' Call of Duty: Mobile zombies mode return?

There's absolutely no word on whether the wave-based Call of Duty zombies mode will return, only speculation. But people are hopeful.

Fans hope that the Undead Siege mode is a precursor to the classic mode returning, perhaps in a later season towards the end of 2021 or at the beginning of 2022, judging by comments on social media.

Xiaomi Mi 10T Pro

(Image credit: Future)

When Call of Duty: Mobile launched, the only zombies map was Shi No Numa, a Japanese swamp, which is one of the original maps from Call of Duty: World at War. Nacht Der Untoten, the first ever zombies map (also from World at War) was also worked on for the mobile game, but was only playable for a brief amount of time.

It seemed like, then, the original batch of maps was being worked on for Call of Duty: Mobile, which includes the aforementioned two, Verruckt and Der Reise. However it's worth pointing out that before Call of Duty: Mobile launched, early alphas showed a very early zombies mode.

The early betas of the game let you play short, several-minute-long missions, not a wave-based mode, based on the Green Run location from Black Ops 2 (several zombies maps were all based in this same larger map - it's confusing, don't worry about it).

The fact that the Green Run missions were scrapped, shows the developers understand fans' love of the classic zombies action - the fact that work was clearly being done on new classic maps, shows that groundwork is already there.

Finally, the game's Player Profile shows you your zombies stats, including how many matches you've been in, your ranking and your total damage output in zombies, and if the mode was being removed or replaced with Undead Siege, it'd be odd that these stats remain.

So all evidence suggests that Call of Duty: Mobile very well could get zombies back again in a real way. However that's all speculation, and even if true it could be some time before classic zombies returns. So take all that information with a pinch of salt for now.

Tom Bedford
Contributor

Tom Bedford joined TechRadar in early 2019 as a staff writer, and left the team as deputy phones editor in late 2022 to work for entertainment site (and TR sister-site) What To Watch. He continues to contribute on a freelance basis for several sections including phones, audio and fitness.

Read more
The Tomb in Call of Duty: Black Ops 6 Zombies.
A new Call of Duty: Black Ops 6 Zombies map is coming, plus fresh enemies and an awesome Wonder Weapon
Three operators walk towards a tall white building, through early morning fog
The Division Resurgence - everything we know
Dead Island 2
Best zombie games 2025: our top picks for undead slaying
A screenshot showing the new map Bullet in Call of Duty: Black Ops 6.
Call of Duty: Black Ops 6 Season 2 will let you fight on a speeding bullet train in one of the coolest maps I've ever seen
An infographic showing different parts of Black Ops 6 Season 2 content.
Black Ops 6 Season 2 release time and what to expect
Pink Guards in Call of Duty: Black Ops 6.
You can now play red light, green light in Call of Duty thanks to new Squid Game collab
Latest in Mobile Gaming
Asus ROG Ally on blue background with lowest price text overlay
The Asus ROG Ally model I'd recommend to most people is back to a record-low price
Driver 3 being played on the AyaNeo Pocket Micro.
Ayaneo Pocket Micro review: a tiny Android tablet ideal for emulation
The Epic Games Store for iOS and Android.
Fortnite, Rocket League Sideswipe, and Fall Guys are available on mobile as the Epic Games Store launches for iOS in the EU and for Android worldwide
Key art for Age of Empires Mobile.
Age of Empires Mobile first in-game footage revealed, pre-registration open now
Two soldiers preparing for battle in the new Halo Infinite winter update
Xbox exploring launching its own mobile gaming store, Phil Spencer reveals
Hades
Award-winning roguelike Hades to release on iOS via Netflix Games next year
Latest in News
Google Gemini Robotics
Gemini just got physical and you should prepare for a robot revolution
Lilo & Stitch Official Trailer
Stitch crashes into earth and steals our hearts with the first trailer for the live-action Lilo & Stitch
GTA 5
GTA Online publisher Take-Two is gunning for a black market that’s basically heaven for cheaters
Y2K cast looking shocked
Y2K has a streaming release date on Max, so you can witness the technology uprising at home
The Discovery+ homepage
Discovery+ just got a big update to its streaming app that makes it more like Max – here are 5 great new features to try
Two Android phones on a green and blue background showing Google Messages
Struggling with slow Google Messages photo transfers? Google says new update will make 'noticeable difference'