A cataclysmic event has forced humanity to build undersea environments to survive. Now 500 years have passed and the only surviving government is crumbling. You lead a team of mercs on missions to save what's left of humanity in this turn based tactical RPG with roguelike elements.
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Release Date:
Spring 2018

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Available: Spring 2018


Recent updates View all (9)

March 20

Build 40 - Level Layouts, Doors and Dialog

This is our last build before GDC and we wanted to get as much in as possible for people we might show it to this week. And we certainly got a lot into this one.

For starters, we have new interior facility layouts that are closed in and more complex. We also separated the facility into rooms and added doors into the picture. To open a door, just position a character next to it and click on it. Opening a door doesn’t use an action. Enemies will also open doors if they are pursuing you!

Read more on our latest DevLog:

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March 7

Frequently Asked Questions and Build 40 Preview

We get asked a lot of questions about Depth of Extinction, both here on Steam as well as on itch.io. We've put together some of the best ones we've received over the last few months for your reading pleasure.


We're also talking about the latest changes coming in Build 40:

We've completely revamped the combat mission maps so that all levels are broken down into rooms and there are doors separating each one.

We also have some all new themes for each facility. They used to be kind of generic but now we also have Medical/Hospital, Reactor/Power generation and Farm/Food Production facilities. Each one has different set pieces and and is very themed to the facility type.

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“I think this is going to be an incredible game when it’s finished. It’s already damn fun now!”

“Depth of Extinction, a tactical turn-based RPG inspired by X-Com and Fallout, will have players wandering a flooded post-apocalyptic world, fighting pirates, raiders, and androids while trying to keep order.”
Silicon Era

“What do you get when you cross FTL with X-com? My money!”
Old Grizzled Gamers

About This Game


A cataclysmic event has forced humanity to build undersea environments to survive. Now 500 years have passed and we are in decline. Pirates, raiders, androids and worse things scour what is left of these habitats looking to survive. You are part of the Republic - the last members of an unknown country that are dedicated to keeping order. Take on missions, hire mercenaries, navigate the flooded post apocalyptic world and fight enemy factions in turn-based tactical battles that take place in procedurally generated environments.


  • Turn based, tactical control of a squad of mercenaries
  • Randomly generated maps with random encounters
  • Procedurally generated undersea habitats to explore
  • Unlock more starting options with each successful mission
  • Tons of weapons, armor and items to find
  • Many character skills to unlock based on stats and chosen class
  • Recruit unique characters to your team
  • Perma-Death!
  • 15+ different enemy types, each with unique AI and attack patterns
  • Beautiful pixel art environments where everything is destructible


Strongly influenced by games such as FTL, X-Com (originals and reboots), Fallout 1 & 2, Shadowrun Returns (plus sequels) and Wasteland 2, this tactical rogue-like RPG stands on its own as a worthy game for fans of those series.

Direct Your Team From the Mission Control Screen

System Requirements

Mac OS X
SteamOS + Linux
    • OS: Windows XP SP2+
    • Storage: 500 MB available space
    • OS: Mac OS X 10.8+
    • Storage: 500 MB available space
    • OS: Ubuntu 12.04+, SteamOS+
    • Storage: 500 MB available space

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