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MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON

Game overview

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON

CUPPAKILL · Oct 10, 2025

In the slums of Tokydon, ruthless crime-boss 'Abaddon' is caught in a gang war over selling immortality while he struggles with his own.

Action Indie Free To Play
Last tracked players
0
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Unavailable
24-hour change
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Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description

THE OTHER SIDE OF THE COIN
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is an expansion pack that expands on the story of the base game with an entire second campaign (at the same size as the first), featuring new gameplay mechanics, locations and characters. Play as the antagonist, Abaddon, who's crime syndicate is caught in a conflict over the Alxyte parasite.

CAST YOUR SHADOW
Abaddon is ruthless and with a far more aggressive move set than Clive, letting him parry and slash through hordes of enemies. Prepare to fight through a new set of open-space levels, with broader corridors filled with far more enemies than before. The gritty underbelly of Tokydon's streets await you...

AND FOR THE LORE ENJOYERS...
Discover the secrets of The Wolf and the true nature of Abaddon's criminal organisation in a plot that finally ties MORTALITY DECOMP. KILLERS directly into the events of BANE MURRAIN.

OVERALL, THIS DLC ADDS THE FOLLOWING:

  • A full campaign with new cutscenes, at the same size as the base game campaign

  • New playable character 'Abaddon' with a different moveset / gameplay style

  • Randomizer, Hard Mode & Hard Randomizer for replaying the new campaign

Media gallery 7 screenshots · 1 videos
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON game capsule image

Screenshots

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 1
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 2
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 3
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 4
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 5
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 6
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON screenshot 7

Videos

Release Date Trailer

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Game details Languages, features & support
Publisher
CUPPAKILL
Controller support
full
Features
Single-player, Downloadable Content, Steam Achievements, Full controller support, Color Alternatives, Adjustable Difficulty, Playable without Timed Input, Stereo Sound
Languages
English
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Frequently Asked Questions

Is MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON free to play?
Yes, MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is free to play on Steam.
What genre is MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON?
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is a Action, Indie, Free To Play game.
Who developed MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON?
MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON was developed by CUPPAKILL and published by CUPPAKILL.
What platforms does MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON support?
Available on Steam for Windows.