Announcement
A Mass of Dead Release of the 1st anniversary
A Mass of Dead Release of the 1st anniversary sale! 7 days from July 11th, save 66% off Thanks for a year.
Steam
A Mass of Dead
Also known as A Mass of Dead, a mass of dead, a-mass-of-dead
Massacre of zombies! Survive the zombies. Buy and upgrade weapons and equipment to massacre zombies. Kill special zombies like zombie dogs, get unique weapons and equipment that you can’t buy from the shop. Be unbeatable using power boost and massacre zombies.
Last update
15 May 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- July 2016
- A Mass of Dead Release of the 1st anniversaryA Mass of Dead Release of the 1st anniversary sale! 7 days from July 11th, save 66% off Thanks for a year.
- January 2016
- 1.131 Patch noteBugfixes CO-OP Chanllenge stages' Achiements are not achieved. Movement speed for boss zombies were slow in chanllenge stages We apologize for your inconvenience.
- 1.131 Patch noteBugfixes CO-OP Chanllenge stages' Achiements are not achieved. Movement speed for boss zombies were slow in chanllenge stages We apologize for your inconvenience.
- 1.14 Patch noteBugfixes CO-OP mode First map is remained until the last map. We apologize for your inconvenience.
- Patch 1.13 notesBugfixes CO-OP mode First map is remained until the last map. We apologize for your inconvenience.
- Patch 1.13 notesBugfixes CO-OP mode First map is remained until the last map. We apologize for your inconvenience.
- Path 1.12 notesBugfixes SMG is not working when started new game. Added some colliders around cars in the first map. changed viewing values of Flame Thrower in the shop. We apologize for your inconvenience.
- Path 1.12 notesBugfixes SMG is not working when started new game. Added some colliders around cars in the first map. changed viewing values of Flame Thrower in the shop. We apologize for your inconvenience.
- December 2015
- [HotFix] !Emergency! Overwritten save data.Erased new save data in lateset update. But users save data is overwritten already. We're so sorry for this big mistake. This is all we fault. We're very sorry again. PS. We're talking about the incident with the valve.…
- [HotFix] !Emergency! Overwritten save data.Erased new save data in lateset update. But users save data is overwritten already. We're so sorry for this big mistake. This is all we fault. We're very sorry again. PS. We're talking about the incident with the valve.…
- 1.11ver patch noteBugfixes Fixed do not load steamworks API at Mac, Linux platform. Fixed do not play any sound in Shop scene. We apologize for your inconvenience.
Gallery
In-game media
Achievements
Community progression
Top picks from 22 Steam achievements, sorted by player unlock rates.
- Awesome EquipmentGet The First Unique Equipment5.7%
- Assemble!Cleared one stage in co-op mode3.7%
- Awesome WeaponGet the first unique weapon3.6%
- SurvivorFirst saw the ending3.4%
- SMG CollectorGot All SMGs3.0%
- Flamethrower CollectorGot All Flamethrowers3.0%