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The Callisto Protocol™
Survive to escape the horrors of Callisto and uncover the dark secrets of Jupiter’s dead moon.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
What reviewers agree on
44 of the 105 reviews raise this.
“"Evolution doesn't happen in the lab, it happens in the wild." Maaan... This game. Let me put it straight: If you expect Dead Space successor then you will be greatly disappointed and if it was meant to be one, then…”
“9/10, amazing story and worldbuilding, great graphics and visuals. Although can be a walking simulator for most parts of the game.”
“The graphics are amazing and I really wanted to play this game but it just won't play. I've tried everything, used two different computers and the game just breaks ( in different spots ) It breaks so hard I have to sign…”
38 of the 105 reviews raise this.
“Very underrated and unfairly maligned game imo. It gets compared and measured up against Dead Space a lot due to some of the devs having involvement on the original series but it's a different sort of survival horror…”
“i dont understand why the reviews are mixed, this game was absolutely awesome, played this game straight after dead space remastered.....”
“I really enjoyed this game; the graphics, story, and voice acting are all great. I did find the combat mechanics to be a little awkward, but once you get used to it, it’s actually really fun, especially the gravity…”
24 of the 105 reviews raise this.
“"Evolution doesn't happen in the lab, it happens in the wild." Maaan... This game. Let me put it straight: If you expect Dead Space successor then you will be greatly disappointed and if it was meant to be one, then…”
“9/10, amazing story and worldbuilding, great graphics and visuals. Although can be a walking simulator for most parts of the game.”
“I really enjoyed this game; the graphics, story, and voice acting are all great. I did find the combat mechanics to be a little awkward, but once you get used to it, it’s actually really fun, especially the gravity…”
14 of the 105 reviews raise this.
“I recommend this game with some heavy caveats. First, get it on sale, you don't really need the suits, but the Final Transmission is a three-ish hour expansion and the Riot Mode are fun. Second, be ready for some jank.…”
“This game gets a lot more negative feedback than it needs to. Overall the experience is more enjoyable than what Cronus offered. At least in my experience. Sure, due to limitations and covid getting in the way during…”
“Got this game on heavy discount game was visually stunning to play loved every moment of it and I like and also dislike the fact that this game was made really simple to progress through combat wise so simple that few…”
10 of the 105 reviews raise this.
“"Evolution doesn't happen in the lab, it happens in the wild." Maaan... This game. Let me put it straight: If you expect Dead Space successor then you will be greatly disappointed and if it was meant to be one, then…”
“I really enjoyed this game; the graphics, story, and voice acting are all great. I did find the combat mechanics to be a little awkward, but once you get used to it, it’s actually really fun, especially the gravity…”
“I played The Callisto Protocol on PC, and as a horror fan, I really wanted to love it. When the game works, it’s honestly a great horror experience. The atmosphere is intense, the prison setting feels dark and…”
37 of the 105 reviews raise this · 13 of them still recommend the game.
“"Evolution doesn't happen in the lab, it happens in the wild." Maaan... This game. Let me put it straight: If you expect Dead Space successor then you will be greatly disappointed and if it was meant to be one, then…”
“The game was incredibly boring, but what’s worse is that it crashed near the end and wiped my entire save. Instant uninstall!”
“It's not a bad game if you somehow didn't play Dead Space games. I honestly think KRAFTON making Callisto Protocol so similar to Dead Space and not something more creative, is why it wasn't received well. There's so…”
19 of the 105 reviews raise this · 9 of them still recommend the game.
“The game was incredibly boring, but what’s worse is that it crashed near the end and wiped my entire save. Instant uninstall!”
“The graphics are amazing and I really wanted to play this game but it just won't play. I've tried everything, used two different computers and the game just breaks ( in different spots ) It breaks so hard I have to sign…”
“Boring and repetitious gameplay wrapped with annoying bug where your saves will disappear. My saves disappeared twice in one playthrough. This game is not worth your time or money.”
12 of the 105 reviews raise this · 6 of them still recommend the game.
“мне, вообще, основная игра зашла. есть определенные огрехи, и технические, и структурные, но поиграть фанатам дед спейс смысл есть. атмосфера, боевка, все это понравилось. и не затянуто на 40 часов, бодро пробегается,…”
“Ну типо компьютерная игра. Крайне не рекомендую брать за фуллпрайс, сюжет не блещет, геймплей тоже. Ласт босса не прошел, потому как не хватило патронов его убить (разрабы у вас все точно окей?). Графоний разве что могу…”
“Fantastic graphics and awesome sound design. The atmosphere is absolutely god‑tier. The story delivers, the monsters are genuinely creepy, and the weapons feel powerful and satisfying. Sometimes a straightforward,…”
9 of the 105 reviews raise this · 3 of them still recommend the game.
“[i] Jump scares without brains, horror without thought. [/i] The Callisto Protocol feels like a game that desperately wants to be taken seriously but refuses to do the work required to earn that respect. It mistakes…”
“мне, вообще, основная игра зашла. есть определенные огрехи, и технические, и структурные, но поиграть фанатам дед спейс смысл есть. атмосфера, боевка, все это понравилось. и не затянуто на 40 часов, бодро пробегается,…”
“While the game was cursed at launch with bugs and the inevitable comparisons to the upcoming Dead Space remake, I do think that a few years after 2022, The Callisto Protocol shaped up to be a fun if flawed sci-fi horror…”
8 of the 105 reviews raise this · 2 of them still recommend the game.
“I'll go against the grain and give this game a positive review. That is not to be a contrarian, but because I genuinely did have quite a bit of enjoyment out of it. Right out of the gate, it is not worth $80CDN. Not by…”
“Boring and repetitious gameplay wrapped with annoying bug where your saves will disappear. My saves disappeared twice in one playthrough. This game is not worth your time or money.”
“THIS IS NOT DEAD SPACE. Even on sale at £10, I wouldn't have bought this game had I known what I'd get. Visually the game presentation is good and the environments have that grungy industrial atmosphere you'd expect,…”
Counted across 105 English reviews, sampled to match this game's 64.9% positive rating · as of 2026-05-20
“Personally, I had a blast but I understand why some people might not like this game. The story, graphics and ambience are awesome. Just keep in mind the game is fairly short, I beat it in 8 hours and I didn't do any speedrunning or skipping cutscense. It's insane that it goes…”
— a player, Steam review · 8 hrs played“I didn’t play The Callisto Protocol at launch, so I’ve got no clue what kind of mess it was in back then. But jumping into it now — and knowing how things ended up for Striking Distance Studios — honestly just makes me super sad. Yeah, sure, the game has some weird design…”
— a player, Steam review · 9 hrs played“The whole game is BUGGY. Slow clunky repetitive combat. Good graphics that suffer from numerous glitches. Boring and not engaging story. Overall: unfinished and poorly made PS. Deadspace does it 1000 times better in every way”
— a player, Steam review · 15 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-24 01:10 UTC · history via SteamCharts.
Achievement stats
Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Regional prices at last sample, in local currency — Steam sets each region's price independently.
Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Action, Adventure |
| Player tags | Horror · Sci-fi · Survival Horror · Third-Person Shooter · Space · Shooter · Action-Adventure · Third Person · PvE · Action · 3D · Story Rich (SteamSpy community voting) |
| Features | Single-player · Steam Achievements · Full controller support · Steam Cloud · Family Sharing |
| Languages | English * , French * , Italian * , German * , Spanish - Spain * , Japanese * , Korean * , Polish, Portuguese - Brazil, Simplified Chinese * , Spanish - Latin America, Russian * |
| Controller | Full support |
| Achievements | 46 |
| Estimated owners | 1,000,000 – 2,000,000 (SteamSpy) |
| Official site | https://callisto.sds.com |
Minimum system requirements (PC)
Minimum: Requires a 64-bit processor and operating system OS: Windows 10/11 Processor: Intel® Core™ i5-8400 or AMD Ryzen™ 5 2600 Memory: 8 GB RAM Graphics: NVIDIA® GeForce® GTX 1060 or AMD Radeon™ RX 580 DirectX: Version 11 Storage: 75 GB available space