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Casualties: UnknownNewsGame Reveal & Demo launch! Welcome to Casualties: Unknown
Community

Game Reveal & Demo launch! Welcome to Casualties: Unknown

Casualties: Unknown · published 20 Apr 2026, 14:00 UTC

All newsPlayers around this dateRead on Steam

Hey everyone,

I am pleased to announce that Casualties: Unknown has finally arrived to Steam. Not only is there a new trailer and screenshots to look at on the page, there is also a brand new demo with an entirely re-worked cardiovascular system with additional quality of life updates like new tutorials and container UI changes.

Watch the brand new trailer here!

If this is your first time seeing this game, then welcome. It’s been a long time in the making, the Itch version of Casualties: Unknown has accumulated over 300,000 downloads since it’s original release on Itch December 31st, 2024. Since then, 24,000 friendly faces have decided to come hang out in the Discord which is crazy!

Casualties: Unknown is an unforgiving cave-exploration survival simulator. You play as an experiment, a cumulation of genetic mutations used as a disposable unit for dangerous ventures. Your captors have tasked you with retrieving lost cargo on a foreign planet, explore its 11 layers and do your best to survive diverse hostile environments. You will have to monitor your food and water intake, protect yourself from dangers, craft tools, and try your best to descend as deep as you can. You are just one of the thousands of test subjects sent to die. 

In this demo, you can play 5 out of the 11 planned out levels featuring the full content of the base game in its current form. Here is a quick overview of what’s in store:

  • An entirely simulated cardiovascular and limb damage system

  • Character traits to increase on your run: Intelligence, Strength, and Resilience

  • Robust crafting mechanics to increase your odds of survival

  • 3 characters with their own distinct playstyles

  • 11 layers of an alien planet with their own challenges and dangers

  • 300 items to find on your runs

  • Adjustable loot and danger values accessible on the main menu

So there it is, that is just the surface of what Casualties: Unknown has to offer. Now I invite you to play it and try it for yourself

If you are familiar with the game and want to see that changelog from v5.1 to v6 here are the patch notes

If you want to know more about the lore, mechanics and crafting possibilities: the wiki is your friend

  • https://scavprototype.wiki.gg/

If you want to discuss lore and ask questions about the game: the Discord is a cool place to be

  • https://discord.com/invite/VeCSKv7AKa

Thank you for reading and I hope you enjoy your time with the game

More from Casualties: Unknown

Other announcements

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Community15 Sep 2026September Progress Updatehello everyone! i've been working on the game slowly but steadily. things are getting decently close to completion by now. here's some of the cool stuff i've been doing Layers All the main layers are complete and in a playable state! i've been trying to make sure that the later layers aren't too brutal to go through, since losing multiple hours of progress isn't very fun. there are 10 main laye…In-game event17 Aug 2026Simplified Chinese has been added to the demoHello everyone, Simplified Chinese is now officially supported in the demo. The translation was made by XiaoCai, Akiras, Lio_FX, Lexic, AlCl3. Thanks to the following predecessors for their contributions in past Chinese Simplified localisations: MonXi, Ying Yue Yan YUN, Goren, JiYv, Yi Jin, Black Moss Black_Moss, 7.62X51mm NATOm1185lr, Nanfeng Deng, floppy disk, SLLLLLLLLUG, a CAT named Mango,…Major update4 Jun 20267.0 Demo Update - Difficulty Modifiers, Settings, Item Labels, QoLADDITIONS - Reworked run settings menu, with multiple presets and a lot more options to configure your run to your liking - A full settings menu - Actual pause menu - Reworked jumping physics - You now only jump when space is pressed down once, instead of auto-jump when held down - You can, however, buffer jump inputs to still get frame one jumps - Walljumps now have coyote time, so you can sta…