Casualties: Unknown achievements
Last updated Unofficial fan guide
The game has 40 Steam achievements. They're only tracked on Steam, not in game. Percentages are Steam's global stats on November 15, 2026; the rarest right now are Round and Round We Go... (0.3%), Pacifist (0.7%), Center of Attention (0.9%). Using certain console commands outside the sandbox disables achievements.
Achievements (29)
| Achievement | How to unlock | Players |
|---|---|---|
| Expected Outcome | Die once. It unlocks the first time you see the death screen. | 77.9% |
| Graduate | Complete every training course from the main menu. Only the Experiment can take the courses. | 9% |
| Neural Enhancement | Find or craft a neural booster and use it. | 7.2% |
| Survival Veteran | Get STR, RES and INT all to level 16. Reading blueprints, carrying too much weight and exercising all speed up skill experience. | 10.7% |
| ... (Become Hollow) | Become Hollow by taking Mindwipe, or by using Braingrow while your brain is regenerating quickly. | 10.1% |
| Ain't That a Kick to the Head | Take a bullet to the head and live through it. | 3.8% |
| Thermal Camouflage | Drop your body temperature low enough that a turret can't detect your heat, then walk past it. | 6.1% |
| Level One Breach | Make the turret in the tutorial open fire, for example by breaking the glass. | 19.5% |
| Real Suck-up | Raise a trader's reputation to the maximum. Playing as Dune, the Friendly Bite action raises it faster. | 20.1% |
| Not a Care in the World | Push happiness to the maximum. High doses of opioids such as fentanyl or opium are the quickest way, with the obvious risks. | 21.7% |
| Center of Attention | Have six manifestations active at the same time. | 0.9% |
| My Survival Over Yours | Kill a trader (the survivors in lifepods). Indirect kills such as an explosion count. | 9.7% |
| In and Out | Reach an ending in under 3 hours of in-game time. The Paradise run mode makes this much easier. | 4.7% |
| Consolation Prize | Die after you've reached layer 6. | 17.6% |
| Hoarder | Carry enough to reach 100% overencumbrance without using mini-barrels. | 12.8% |
| Dead Man Walking | Bring yourself back from cardiac arrest with a defibrillator or an epinephrine injection. | 3.5% |
| What Have I Done..? | Carry a plushie while you have the Depressed status. Your character tears it apart and the achievement unlocks. | 1.8% |
| Wrong Way | Head up instead of down at the start of a run. | 53% |
| Playing With Fire | Fire any gun. | 19.5% |
| Reading Comprehension | Use an E-PDA. | 23.8% |
| Leukocyte Overflow | Raise your immunity to 200%. | 29.6% |
| Express Route | Find a working drill pod and ride it down. | 8.6% |
| Transhumanist | Attach any prosthesis. | 10.6% |
| Good as New | Let a broken bone heal fully. A splint helps. | 36.6% |
| Bright Idea | Put a lightbulb in your mouth slot as the Experiment or Milky. It doesn't work as Dune, because the bulb doesn't burst. | 10.5% |
| Round and Round We Go... | With the Endless run setting on, loop back to the start twice. It's the rarest achievement in the game. | 0.3% |
| Certainty of Steel | Have four P.E.O. prosthetic limbs attached at the same time. | 1.1% |
| Lightfooted | Get through a whole layer without a fall knocking you into ragdoll. | 37.4% |
| Heavy Metal | Smelt a titanium slab. Titanium comes from ilmenite. | 9.3% |
Hidden achievements (11, spoilers)
These cover the endings, the characters and late-game creatures.
| Achievement | How to unlock | Players |
|---|---|---|
| TOP OF THE FOOD CHAIN | Kill the Elder thornback. | 3% |
| Company's Best | Reach the bio-pod ending. | 9.3% |
| Company's Worst | Reach the escape ending. | 2.4% |
| To Be Continued | Reach the Mercenary ending. | 1.9% |
| Cannon Fodder | Reach any ending as the Experiment. This also unlocks Milky. | 10.9% |
| The Marksman | Reach any ending as Milky. This also unlocks Dune. | 4.7% |
| The Cannibal | Reach any ending as Dune. | 2.1% |
| 'Tis but a Scratch! | Get bitten by the Elder thornback and survive it. | 7% |
| It Refused. | Trigger a last stand. | 26% |
| Pacifist | Finish the escape ending without killing a single guard. Since patch 1.0.1, guards shooting each other no longer breaks it. | 0.7% |
| Millions to One | Pick up the cargo at the bottom of layer 10 (not in an Endless run). | 11.8% |
Sources: Casualties: Unknown Wiki (Miraheze) · Steam Community