Quote:Descend into the depths of the Target Planet's cave network to retrieve a critical piece of cargo, encountering many horrifying obstacles and problems on the way, to your character's dismay. Survival chances are near 0%—expect to die a lot along the way.
Caution and patience are greatly rewarded in the depths. Any mistake can spiral into an ugly, permanent death.

Casualties: Unknown is an unforgiving cave-exploration survival simulator. Your captors have tasked you with retrieving lost cargo on a foreign planet, explore its 11 layers and do your best to survive diverse hostile environments. You are just one of the thousands of test subjects sent to die.

• physical violence & gore: graphic body horror, limb dismemberment (self amputation or otherwise), intense bodily injuries, decapitation, and characters dying incredibly slowly from severe blood loss, trauma, or infection, and self surgeries or things like resetting dislocated limbs or pulling out shrapnel; your expie narrates to themself out loud the entire time youre exploring, which includes them in pain or very, very scared
  
• insects, spiders, and other crawlies: giant arachnids, swarming bugs, and subterranian creatures as early as the first layer (but becoming particularly aggro around layer three); some outright chase and hunt you down or rip limbs off
  
• flashing lights / eyestrain: sudden pain can cause a bright strobe, as well as harsh lighting and glitch effects; suffering severe brain damage / hypoxia can cause flashes or "seizures" - a sudden loud noise followed by bright flash, colour shift, and the current screen burning in for a few seconds before slowly fading. additional things brain damage can do include flipping the screen every few seconds and severe visual shaking
  
• loud noises and auditory warnings: heartbeat sounds, gore noises, medical system beeping, loud creatures, environmental sounds, and harsh sudden tones in the music (namely the pain music and severe depression / death music); being severely depressed may trigger a loud harsh warning tone before a certain minigame is triggered
  
• depression, self harm, and suicide: if your expies mood gets too low, they can resist healing items, ignore you trying to tell you to do things, and at their absolute worst may self injure or try to end their life. if not censored, and your mood is too low, a warning ring will trigger before an unavoidable self injury scene occurs. if censored, your expie will vomit instead. if their mood continues to drop, they will do worse until they bleed out; if they have a gun, even without any ammo in it, they will utilize it (this can technically be avoided if you are fast enough and keep in motion, i believe ?). if censored, they will go into cardiac arrest instead. depression and suicide are treated incredibly frankly and raw + real in this game in a way that hits with me personally, but may be VERY triggering for other people
  
• general distress and hopelessness: themes of forced labor, captivity, abuse, extreme claustrophobia, isolation, and total helplessness; given that you play as test subjects with no hope of rescue. narrow tunnels and scarce resources can lead to compounding catastrophes wherein a single mistake can cost you massively. 
  
• substance use / abuse + forced medication: you kind of have to pump expies full of pain meds, strange stimulants, and other things to keep them alive and moving. they can become addicted to opiates and suffer fatal withdrawal if bad enough.
  
• suffocation & drowning: theres environmental hazards of water or oil and such. it is very easy to end up trapped in these if things go south.
  
• other medical situations: heat / cold hazards like frost bite or heat stroke, plain old strokes, and so on, including severe panic or garbled speech from brain damage; any possible injury or illness is graphically depicted, including moodles + the health panel so you can watch precisely what is happening as your expie deteriorates.. or as you try to rescue them !!