Casualties: Unknown endings

Last updated November 14, 2026Unofficial fan guide

Spoiler warning: this page explains how every ending works.

There are three endings. Each one counts as finishing a run, which unlocks the next character (Experiment, then Milky, then Dune).

Getting to the end

Reach the bottom of layer 10, Where We Must Reach, and pick up the cargo (achievement Millions to One).
Use the high-powered drill pod on the same layer. It only starts once you have the cargo.
Climb layer 11, Crimson Ascent, to the surface. The pod then takes you to the lab, except in the Mercenary ending.

With the Endless run setting on, picking up the cargo sends you back to layer 1, so Endless runs never reach an ending.

Requires: None beyond reaching the lab.

In the lab, do what the scientist tells you and go through the door on the right.

It's the only ending a chipped character can get, because chipped characters can't use items in the lab.
If your brain starts dying during the escape, you're captured and the run ends here instead.

Requires: Play unchipped and bring a gun to the lab.

Let the scientist finish talking; after that an unchipped character can use items again.
Shoot the scientist to start the escape. Guards start arriving.
In the surgery room, follow the prompts to take the cargo out: inject local anesthetic into the abdomen, use the large surgical device, place the clamps on the marked spots, pull out the cargo and cover the wound with the tubes.
Leave through the door and get out of the facility.

A bigger group of guards arrives after about a minute, so be quick. Patch 1.0.1 made the surgery minigame more forgiving on time.
Killing no guards earns Pacifist.

Requires: You've finished the bio-pod or escape ending before; the run is chipped, Endless is off, and you start fresh from layer 1.

Partway down layer 1, break open the malfunctioning Tech-Ball in a small cave just below you to get the nanotech scanner.
Use the scanner before you leave layer 1. It teaches the M.E.R.C. scarf recipe and gives 200 INT experience.
Collect six chips, one per layer: Regeneration (layer 2), Capacitor (3), Mind-Swap (4), Emergency Rejuvenation (5), AI (7) and Kinetic (9). Keep the scanner in your main inventory and it points to each one; since patch 1.0.1 it also tells you the depth in meters.
Craft the M.E.R.C. scarf from a scarf, a circuit board and all six chips (18 INT).
Reach the surface with the scarf anywhere in your inventory.

The chips can show up in normal runs too (25% per layer), but without the scanner's recipe you can't identify them or make the scarf.
This ending happens on the surface instead of in the lab.