Casualties: Unknown first descent guide

Choose the build before following a guide

The Windows Steam full game launched November 9, 2026. Its patch notes add layers 6–11, more characters, endings and prosthetics. The separate Steam demo covers the first five layers, and Orsoniks says it will remain available. Older guides under the Scav Prototype name may describe the early itch.io build. Check the release and item tooltip in your own game before relying on an old recipe or interface shortcut.

If you want to…	Start here
Learn how to equip, inspect and craft	Play the tutorial in the build you plan to use
Practice the early descent	Use the Steam demo or start a full game run with settings you are comfortable with
Continue beyond the demo layers	Open the full Steam release and use its own run menu
Pick up an interrupted 1.0 run	Use the game’s save and continue options and check which run is selected

Learn one task before you leave the tutorial

Open the health panel and locate an individual limb. Open the inventory and practice moving an item between accessible storage and a hand. Then use the crafting tutorial to see how the game presents a recipe and the tools or materials it needs. These are the actions you will need when a run becomes dangerous.

Pick a practical run goal before leaving. For a first attempt, try to reach a layer transition with an accessible dressing, a usable light source and a way to handle thirst. If you cannot find something, decide which risk you can manage on the route ahead. Avoid filling your storage with crafting materials for an item that still lacks a required tool or ingredient.

Read the area before spending resources

1. Check your condition when you enter. The full release displays hunger and thirst indicators earlier and adds a liquid safety area around layer entry. Take the opportunity to check which condition is already changing.
2. Inspect the route to the next cache. The publisher identifies locked containers, abandoned pods and hidden machinery. Scout a way to retreat before approaching supplies, especially if you are already injured.
3. Decide what the loot solves. Keep an item if it covers a current need or a recipe you can complete. In 1.0 the material pouch only accepts specific materials. Move medical items to a container that can take them, then check you can reach them quickly.
4. Stop for an injury check before descending. Take a route you can still move through with your current health. If bleeding starts, use the health panel and dressing guide before trying another obstacle.

Craft for a bottleneck and leave time to continue

Use the current recipe requirements and count what is missing before committing several items. The 1.0 notes changed wood scraps and the drill repair kit. They also allow boiling lumalgae into bio-chem. If an older guide gives another recipe, use what the full build shows. Release 1.0 also uses an available lockpicking kit from anywhere in inventory. Check that you have the kit when a lock becomes your next obstacle.

Plan your break around a layer transition. Use Save and Quit when the game offers it and read the current prompt before confirming. If the menu warns that quitting will end the run, continue toward a transition if you can do so safely. The 1.0 changelog includes a save-and-quit fix for trap and loot multipliers and a fix for the save/continue interface. When you return, use Continue and verify that the active run is present before you start another.