A downloadable game for Windows, macOS, and Linux

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NEWS (8 December 2017):

ALPHA 4 is here! The fourth Alpha version features 40 new enemy types/variants, alien plants, a destructible environment and more.


XENOMARINE is a dark, atmospheric, sci-fi/horror themed roguelike in which you play a space marine exploring an alien-infested space station. Starting out with little more than a crowbar, you will fight to survive against over 120 increasingly powerful alien species, as you progress as far as you can through infinite randomly generated levels.

With no starting classes, develop your character entirely by means of in-game choices: choose between over 70 skill levels as you gain experience from combat, and create a unique build each time you play by finding and choosing between hundreds of unique usable items and individually upgradable weapons and armor.

WARNING: This game is hard! Expect to die soon and often when first starting out, and in classic roguelike tradition death is permanent - meaning you will have to start again from level 1. But don’t worry: each playthrough will be different because so many parts of the game are randomly generated (in a way that’s carefully fine-tuned for balance).

PLEASE NOTE though that due to the limited content in the Alpha, the game in its current state may start to feel a little repetitive, especially after level 15 or so. The idea is that there will be more and more content as development proceeds, making each playthrough more and more unique.

See the game website for more info and the development blog for details of recent updates, or follow Xenomarine on Twitter


  • Rich, Tactical Turn-based Combat
  • Infinite, randomly generated levels
  • Atmospheric 3D lighting
  • Unique useable items such as scanners, stimpacks and directional forcefields
  • Over 150 unique enemy types (120 in Alpha)
  • Over 70 learnable skill upgrades
  • Random miniquests
  • Multiple damage types and status effects
  • Crafting (craft items from scrap and upgrade weapons and armor)
  • Hack drones; deploy traps; use alien tech
  • Intuitive user interface, with mouse-only and keyboard-only support
  • Realistic sci-fi sounds including randomly generated atmosphere sounds


XENOMARINE is currently in development, but is available to download in two different versions.

The recently released ALPHA 4 has enough content and replayability that it could be seen as a finished game: with infinite levels a good run can in principle last, well, forever, and given that the hallmark of roguelikes is replayability, that’s a lot of potential game hours!

However, another hallmark of roguelikes is wealth of detailed content, and there is still loads more to add (new levels, aliens, items, weapons and other features). In terms of such content I'd say that with ALPHA 4 the game is about 70% complete.

There is also a free DEMO version, consisting of the first 3 levels of the Alpha, making it a fun, playable minigame.

The Full game is expected to be released in early 2018 on PC, Mac and Linux. Buyers of the Alpha will of course get free access to any further updates, including the full game itself when it is released (NB it is currently planned that the full game will have a higher price than the Alpha).


Download NowName your own price

Click download now to get access to the following files:

Xenomarine Alpha 4 PC Demo (3 levels) 68 MB
Xenomarine Linux Alpha 4 Demo (3 levels) 89 MB
Xenomarine Mac Alpha 4 Demo (3 levels) 72 MB
Xenomarine Alpha 4 PC 68 MB
if you pay £7.99 GBP or more
Xenomarine Linux Alpha 4 89 MB
if you pay £7.99 GBP or more
Xenomarine Mac Alpha 4 72 MB
if you pay £7.99 GBP or more

Development log