Pre-release page. Launches on Steam November 9, 2026 at 3pm CET (14:00 UTC). Data here comes from the Steam page, the demo and official developer posts, and each page says which version it reflects. We'll update it for the full release.
Guides and databases
Release Date & Time
November 9 at 3pm CET, converted to your time zone, plus price and editions.
Beginner Guide
Your first run: the tutorial, the chip, light, water, and how not to bleed out on layer 1.
Medical Guide
Bleeding, fractures, infection, the heart and blood pressure, and what treats each.
Conditions (175)
Every moodle by body system, from Minor bleeding to Septic shock.
Crafting Recipes (132)
Every demo 7.0 recipe with ingredients and INT requirements. Searchable.
Items (364)
Look up any item or liquid: what makes it, and what it's used for.
Layers & Modifiers
All 11 layers and the 11 random layer modifiers.
Characters
Experiment, Milky and Dune, and how to unlock them.
Run Settings
6 difficulty presets and 41 custom options explained.
Demo vs Full Game
What 1.0 adds: layers 6–11, endings, prosthetics and 40 achievements.
Patch Notes
Demo 6.0, 6.1 and 7.0 summarized, with 1.0 coming on launch day.
What Casualties: Unknown is
Casualties: Unknown is a cave-exploration survival simulator by Orsoniks, published by Oro Interactive. You play an expendable experiment sent to recover lost cargo on an alien planet. You manage food and water, avoid traps and creatures, craft tools and treat your own injuries as you descend through 11 layers.
The medical system is what sets it apart. Limbs, blood and the heart are all simulated, so a deep cut means bleeding you have to stop, wounds can become infected and turn septic, and blood pressure and heart rhythm are tracked too, with conditions running from arrhythmia to cardiac arrest. Rock Paper Shotgun called it "Noita for furries, and oh so deliciously miserable".
Key facts
- Release: November 9, 2026 at 3pm CET (14:00 UTC) on Steam. Release time in your time zone.
- Price: $22.99 with a 15% launch discount, plus bundles and regional pricing.
- Free demo: layers 1–5. It won't be updated for 1.0.
- Full game: layers 6–11, three endings, three characters and 40 achievements.
- History: released free on itch.io on December 31, 2024, where it passed 300,000 downloads before the Steam reveal in April 2026.
- Mode: single-player. Steam lists no multiplayer.
- Languages: English and Simplified Chinese on Steam, with community translations in the developer's locale repository.
About our data
Until the full game is out, our tables reflect the demo. Recipes come from demo 7.0, item and condition names from the developer's own text files (Demo 7.0.1 (demo/EN.json) and 1.0-Pre3), and mechanics from the official patch notes. Every page says which version it uses. The community-run Scav Prototype Wiki, which the developer links to, is the source of our recipe data under CC BY-SA 4.0.