A downloadable mod for Windows

Buy Now$4.99 USD or more

Important Note - This is DLC content for the base game, System Crash.  You will only be able to play it if you have purchased System Crash and have it installed.


Underworld introduces an exciting new story campaign and a powerful new card set focused on turning your Archive (discard pile) into a potent resource. 

From Agents and Support cards that gain strength the more you discard, to Events that let you bring cards from your Archive back into play, Underworld adds a range of exciting new options to deck building.

The Underworld set is powered by a unique risk-reward dynamic. Underworld cards can generate huge burst damage, but you'll need to burn your own deck to fuel your combos. Played well, you can sweep your opposition off the board. Played poorly, you burn down your own deck and leave yourself weakened and exposed.


- An exciting new story campaign.

- 30 New missions.

- 20 New cards to collect.

- New card mechanics that allow you to burn your own deck for power.

Note - The DLC campaign, when installed, will be found under the "Choose Module" main menu option.

Note 2 - Story contains swearing and features mature themes - violence, criminal activity, prostitution, drug and alcohol use.


Buy Now$4.99 USD or more

In order to download this mod you must purchase it at or above the minimum price of $4.99 USD. Your purchase comes with a Steam key. You will get access to the following files:

SystemCrashSetupUnderworldv1650.exe 108 kB

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