Loading…
In the slums of Tokydon, ruthless crime-boss 'Abaddon' is caught in a gang war over selling immortality while he struggles with his own.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
This is the base game required to play this DLC. Other expansions may also be required.
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.
Lowest tracked price: PLN 23.37 (Jul 7, 2026) · current best: PLN 27.50.
100% positive reviews all-time.
Right now the cheapest offer for MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is PLN 27.50 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON is PLN 23.37 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when MORTALITY DECOMP. KILLERS: SHADOW OF ABADDON drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
