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Casualties: Unknown
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.
View on Steam →- Potential score
- 99
- Positive
- 97% Overwhelmingly Positive
- Total reviews
- 1,462
- New reviews/day (7d)
- 705
- Players online
- 5,346
- Price
- $19.54
- Release date
- Nov 9, 2026
- Developer
- Orsoniks
- Publisher
- Oro Interactive
- Est. sales
- 43.9K~87.7K rough estimate from review count
Daily New Reviews
Is interest rising or fading?
◆ Deep Dive
Based on 78 sampled player reviews · 2026-11-11
A hardcore survival game that ties cave exploration to extremely detailed injury management, trading constant pressure and high difficulty for a strong sense of immersion.
Core loop
The player is a captive sent to an alien world to find goods, descending layer by layer while constantly treating fractures, bleeding, infection and other injuries, sustaining supplies through gathering and crafting, and starting the whole run over on death.
How it feels to play
A single run feels very tense: you plan resources while handling sudden injuries, and a moment of carelessness can cause a collapse; once you know the rules, you can also get relief and a sense of achievement from pulling an injury back from the brink.
Who it's for
Suited to players willing to spend time learning complex systems, who prefer hardcore survival and high-pressure atmosphere, and who can accept psychological horror and gore; it may not suit players who become too immersed in their character or who want a relaxed experience.
What players love
The injury and medical systems are richly detailed; most injuries can be saved with correct treatment, and failure is more easily attributed to your own actions
I've played since around V5pretest1 when crafting was added on itch.io, this game genuinely has been an amazing experience i have around 400h with all versions combined (playtest, demo,5.1 and before, 5.1 and before with…
Recommended · 39 h played · 2026-11-09Very difficult but learnable; once you understand the rules it gets smoother and the sense of achievement is strong
It is hard as NAILS. but overtime once you learn it bit by bit, it is pretty fun
Recommended · 3 h played · 2026-11-10Art, music and sound design are well received, and each layer's environment is clearly distinct
This game is truly a masterpiece. From the visuals, to the OST and sound design, it has blown me away. C:U has revived my interest in gaming and I am very grateful for that! The health system and subsequent mechanics are…
Recommended · 110 h played · 2026-11-09The oppressive, horrifying atmosphere delivers a strong emotional impact and immersion
the game can be very scary for some people like me, when you think nothing will go wrong, the next 10 seconds everything can be suddenly wrong and its easily overwhelming. though i will warn you if you feel strong empath…
Recommended · 6 h played · 2026-11-10Challenge modes and settings options provide considerable replay space
this game is the best realistic caving games ive played in a long time. the overhauled health system is a very nice touch. makes you really feel like your actions actually have consiquences and they VERY much do. i would…
Recommended · 5 h played · 2026-11-10
What players complain about
Loot and key medicines rely too heavily on random generation; when the needed items cannot be found, the whole run's progress is void, and death does not feel like your own mistake
Still has the same issues as the demo. Elder thornbacks are still a gear check, strokes are still too easy to have from just a minute of overexertion and guarantee death without a few basically uncraftable medicines, int…
Not recommended · 4 h played · 2026-11-09The full release adds limited content over the demo, and later layers lack fresh mechanics and threats, weakening the drive to explore
As it stands right now, either play the demo, or mod the hell out of it. 0 QoL added since demo. Still no selling from bags, still no save and quit for if you have to leave a run mid-layer, etc. Any layers past layer 5 j…
Not recommended · 9 h played · 2026-11-09No in-layer saving or mid-run exit, forcing long uninterrupted runs
None of the core issues i had with this game were addressed upon full release. Crafting is still oppressive and poorly put together, and the idea of needing to beat this game twice over to play the new characters is insu…
Not recommended · 1 h played · 2026-11-09The crafting flow is cumbersome and the information is not intuitive, criticized as overly burdensome
Please scroll down for the English version 总体而言,大家可以观察一段时间再入手,现在的未知伤亡有一些无法忽视的缺陷。 我真心希望爱狗TV是一个好游戏,demo游玩大概100小时,我也和朋友一起玩了不少时间,但是正式版让我非常失望。 第一点 相较于demo,新增可合成物品仅有三个等级的假肢,本质上也就是一个物品。在层级方面,我带着期待的用指令冲进了后面的层级,但6-10甚至11层没有任何能让人感…
Not recommended · 2 h played · 2026-11-09Traps and scene objects can spawn overlapping, and there are even severe issues such as getting stuck in place and getting stuck during layer transitions
原地卡死力竭的恶性bug,莫名其妙的结局剧情,不加mod改良体验感甚至完全不如5月份的原版demo,这个价格真的不值,不建议现在入
Not recommended · 1 h played · 2026-11-09The ending's story handling is disappointing
The price does not match the full release's scope, and it is considered not worth buying at the current price
Taunting text in the pause menu and the repeated confirmation for suicide add to the psychological pressure
demo版本的游玩让我对这个游戏包有期望 我买这个游戏只是因为你们demo做的足够优秀,我很讨厌暂停菜单里那些嘲讽的语言和反复确认的自杀,为什么要让这款硬核游戏的玩家再加上这么一重心理压力?而且正式版对比试玩版真的有什么内容上的提升吗?我非常怀疑这是否是一款一次性游戏,更别提本就压抑的环境中继续用这种话语攻击玩家了。
Not recommended · 1 h played · 2026-11-10
Why it might be taking off
These are hypotheses drawn from reviews and data, not confirmed facts.
- Medium confidenceHigh difficulty and the survival pressure of "you could die at any moment" may be the main selling point attracting core players
- Medium confidenceThe detailed medical and injury simulation may be part of why positive reviews cluster around it
- Medium confidenceThe oppressive, horrifying atmosphere and emotional impact may prompt players to recommend it to others on their own
- Low confidenceThere were 794 positive and 19 negative reviews on launch day, and 609 positive and 23 negative the next day; this distribution may be related to word of mouth concentrating around launch, but a two-day curve alone cannot determine the cause
- Low confidenceThe $19.54 price is in the paid tier, and price itself may be one variable affecting its audience reach
- Medium confidenceThe combination of survival, psychological horror, 2D, difficult, pixel, gore and permadeath tags may naturally appeal to players who prefer hardcore and dark themes
The sample is not exhaustive: up to 2 pages each of toprated and mostrecent were taken per language; the store page shows 1414 total reviews and a 97% positive rate, and this analysis is based only on the given review sample and the two-day curve.