MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON

Overview

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is a Steam DLC connected to MORTALITY DECOMP. KILLERS. It was prepared by CUPPAKILL, published by CUPPAKILL, and released on Oct 10, 2025. This page focuses on the store listing, screenshots, price, requirements, and its relationship to the main game rather than presenting it as a normal live-player game.

Store reviews and relationship

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is a DLC, so player-count observations and tracked peak are not meaningful in the same way they are for a base game. The useful signals here are reviews, store recommendations, price, platform support, and the link back to MORTALITY DECOMP. KILLERS.

Language and system requirements

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is available in 1 languages including:

3 regional rating boards including dejus, steam germany, and igrs. Steam has not published complete Windows, macOS, and Linux requirement text for this game yet.

Recommendations and store value

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON has recommendation data pending. Twitch streaming and unit-sales estimates usually belong on the parent game page, while this page is better for checking the DLC, price, media, and store details.

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON overview details

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is tracked as Steam Store content with pricing, reviews, packages, media, requirements, and its relationship to the parent app.

Steam Store 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 Abaddon and all DLC Maps available in the game's two endless gamemodes. First Person Shooter camera option for every gamemode.

SteamPulse editorial summary

MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is listed as a DLC with $5.99. It supports Windows, belongs to Single-player, Downloadable Content, Steam Achievements, Full controller support, Color Alternatives, Adjustable Difficulty, Playable without Timed Input, and Stereo Sound, and is associated with Action, Indie, and Free To Play. Because it is a DLC, SteamPulse focuses on its Store listing, relationship to the parent app, media, packages, and metadata rather than treating it like a standalone concurrency page.

Content descriptors

SHADOW OF ABADDON contains darker themes than the base game, with mentions of drugs, alcohol and general crime. The DLC follows the villain of Clive's story and is not intended to encourage these actions. It also has about as much violence as the base game (alot).

Support and legal notes

Real questions answered from SteamPulse data, including live players, monthly momentum, review sentiment, regional audience signals, Twitch activity, and current Steam pricing.