---
title: Casualties Unknown Updates: Patch Notes and Full Changelog
description: Official Casualties: Unknown patches and announcements, newest first, with the wiki pages each one changed.
url: https://casualtieswiki.wiki/update/
---

Updates

# Casualties Unknown updates
Official Casualties: Unknown patches and announcements, newest first, plus substantive changes to this wiki.

## Casualties Unknown update log

- 9 November 2026 · This wiki
The wiki launches. Numbers come from Demo 7.0.1; pages will be rechecked against the full game as recordings appear.

- 9 November 2026 · Official · **Full release** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1846651706677603)
Casualties: Unknown launches on Steam at 15:00 CET, adding layers 6 to 11, three endings, three characters and 40 achievements.
Pages: [Release, price, demo](https://casualtieswiki.wiki/game/release-date-price-demo/), [All layers](https://casualtieswiki.wiki/layers/all-layers/), [Endings and lore](https://casualtieswiki.wiki/game/endings-and-lore/)

- 15 October 2026 · Official · **Launch announcement** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1846651706677603)
Release date, 22.99 USD price with a 15% launch discount, regional pricing and a 3-hour OST. The demo will not be updated further.
Pages: [Release, price, demo](https://casualtieswiki.wiki/game/release-date-price-demo/)

- 15 September 2026 · Official · **September progress** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1843481262704593)
All main layers playable, three characters confirmed, over 30 achievements, a three-tier prosthesis system, and easier traps and combat.
Pages: [Expie](https://casualtieswiki.wiki/characters/expie/), [Limb damage](https://casualtieswiki.wiki/health/limb-damage/), [All layers](https://casualtieswiki.wiki/layers/all-layers/)

- 17 August 2026 · Official · **Simplified Chinese** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1840944183785769)
Simplified Chinese added to the demo.
Pages: [Release, price, demo](https://casualtieswiki.wiki/game/release-date-price-demo/)

- 4 June 2026 · Official · **Demo 7.0** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1834602721186794)
Run settings with presets, a full settings and pause menu, reworked jumping, item labels on Left Ctrl, and a long list of medical fixes.
Pages: [Run settings](https://casualtieswiki.wiki/layers/run-settings-and-modifiers/), [Beginner guide](https://casualtieswiki.wiki/survival/beginner-guide/)

- 23 April 2026 · Official · **Demo 6.1** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1830797770233957)
Stroke chance at hypertensive crisis lowered to 2% per second, fibrillation retuned, defibrillators no longer always fix asystole, and advanced tutorials locked behind layers.
Pages: [Heart and stroke](https://casualtieswiki.wiki/health/heart-and-stroke/), [Beginner guide](https://casualtieswiki.wiki/survival/beginner-guide/)

- 20 April 2026 · Official · **Demo 6.0** · [source](https://steamstore-a.akamaihd.net/news/externalpost/steam_community_announcements/1830163047266090)
Reworked cardiovascular simulation, two defibrillator types, four medicine types, a new tutorial and the first Steam demo.
Pages: [Heart and stroke](https://casualtieswiki.wiki/health/heart-and-stroke/), [Medicine and drugs](https://casualtieswiki.wiki/items/medicine-and-drugs/), [Scav Prototype](https://casualtieswiki.wiki/game/scav-prototype/)