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.
1.0 (full release) · November 9, 2026
Not out yet. We will add the official 1.0 patch notes here on launch day. What the developer has confirmed so far is on the full game changes page. Full game changes.
Official post: Developer post: "Casualties: Unknown Launches November 9th" (Oct 15, 2026)
Demo: Simplified Chinese · August 17, 2026
Simplified Chinese became an officially supported language in the demo, translated by community volunteers.
Official post: Developer post: Simplified Chinese added to the demo
Demo 7.0 · June 4, 2026
Difficulty modifiers, a full settings menu and quality-of-life fixes. This is the last major demo update.
Run setup
- Reworked run settings menu with presets and many more options (see run settings)
- Full settings menu and a real pause menu
- Certain layer modifiers can no longer appear on the first layer
Movement & controls
- Jumping reworked: one jump per press, with input buffering
- Wall jumps have coyote time
- Hold Left Control to show labels for all nearby items
- More stable footing on slopes
Medical
- Hemothorax lowers max oxygen again
- Cave ticks inject 75% less venom per bite
- Antiseptic mush and clotting mush buffed; antiseptic mush can go in medkits
- Vomiting blood slows you down less
- Low abdomen muscle health now correctly causes internal bleeding
- Stroke-reducing items no longer fix vision
- Splints and tourniquets come off when a limb is lost
Crafting & items
- More items are craftable, including a geiger counter
- A few new advanced items
- E-PDAs give 35 INT experience and blueprints give 25
- Grappling hook fits on the belt
- You can drink from temporary bottles
- No heat source needed to make milk from powdered milk
- Ilmenite only spawns from layer 5
World
- Geotrees visibly grow geofruits
- Steel tiles can drop scrap
- Traders react to some of your words
- Some flora renamed and plant drops rebalanced
Mood
- Mood normalizes faster while asleep
- A last stand sets happiness to about 10
Commands
- New floodfill command
- Improved starterkit command
Demo 6.1 · April 23, 2026
Balance fixes to the new heart simulation, and the advanced tutorials are now locked behind layer progress.
Tutorials
- First Aid course unlocks at layer 2 and Crafting course at layer 3
- You can skip part of the First Aid course by barking
- The crafting tutorial explains how to see which recipes use an item
Heart & blood
- Fibrillation only rises quickly above 280 bpm, and 4× instead of 5×
- Amiodarone lowers fibrillation faster
- Stroke chance during hypertensive crisis lowered from 5%/s to 2%/s
- Sepsis affects blood pressure much less
- Defibrillators no longer always fix asystole
- Opioids now cause vasodilation
Other
- E-PDAs give 50 INT experience on first read (later changed to 35 in 7.0)
- Blueprints give 30 INT experience (later 25)
- Amputation hurts a bit less
- Browncaps are less likely to harm you
- Anti-rad shows an overdose moodle
- New nukeplayerprefs command
Demo 6.0 (Steam demo launch) · April 20, 2026
The first Steam demo, with a rebuilt cardiovascular simulation and new tutorials. Before this, the game had been on itch.io since December 31, 2024.
Medical
- Rebuilt cardiovascular simulation that affects almost every part of your body
- Two types of defibrillator, four new medicine types and three new drug items
- Auto-pump rework; the "auto-auto-pump" was removed
- Venom added
- Separate moodles for each bleed severity, plus a new "miserable" moodle
- You can overdose on anti-rad; antidepressant overdose made less serious
- Eating with a broken jaw hurts less, but food is 25% less effective
- Infections are visible when unchipped
Tutorial & UI
- Reworked tutorial with several courses and a simple sandbox
- See which recipes an item is used in again
- Reworked container view; some containers limit item categories
- Reworked health chip panel
- Dominant hand switch moved to the health panel
World & items
- Ionized layer modifier spawns some anti-rad
- Turrets take longer to shoot you when they are off screen
- Earthquakes a little rarer
- Jetpack works when wet (unreliably) and acts as a small container
- Medkit, belt and crystal shards buffed; glass shards slightly nerfed
- Wood sandals cheaper to make
Mood
- Happiness moves toward zero faster, especially below −50
- Low-mood effects happen a little later
- Blood volume affects mood less
These are our summaries, not the full notes. Each version also included bug fixes we haven't listed here, so check the linked post for the complete list.