Key art for Barotrauma

Game review

Barotrauma

Submarine Survival SimulationWindowsmacOSLinux

7.5 / 10

Developer
FakeFish, Undertow Games
Publisher
Daedalic Entertainment
Released
13 March 2023
Platforms
Windows, macOS, Linux
Genre
Submarine Survival Simulation
Monetisation
One-time purchase, currently NZ$24.99 at 50% off (NZ$49.99 full price). No microtransactions; free content updates continue post-1.0.
Players
Online co-op, typically 4-16 players depending on submarine size, with an optional hidden-traitor game mode

The short version

Barotrauma puts a crew of players inside a submarine on an alien ocean moon, managing reactors, repairing hull breaches, fighting off leviathans and, in its most-discussed mode, wondering whether one of their own crewmates is secretly trying to kill them. It's a genuinely unique fusion of systems simulation, survival horror and social deduction, and 94% positive across 88,702 reviews reflects real devotion from players who've built entire play styles — doctor, engineer, saboteur — around it.

Its negative reviews are unusually specific and consistent on two fronts. The first is performance: even reviewers with over a thousand hours logged, writing glowing anniversary tributes turned reluctantly negative, describe the game as built on "seven year old code" with a persistent, wide-ranging bug list. The second, and louder, is the community itself — public server griefing severe enough that some of the most-upvoted negative reviews in the game's history call it the worst multiplayer community they've encountered in decades of gaming, distinct from anything the developers built.

Biggest strengths

  • A genuinely unmatched simulation of submarine systems — reactors, wiring, hull integrity, oxygen — that reviewers say nothing else in the genre replicates
  • The hidden-traitor social deduction mode produces some of the most memorable, frequently-quoted player stories in this library's review research
  • Enormous scope for emergent roleplay, medical, engineering and combat specialisations that players build entire identities around

Biggest weaknesses

  • Public multiplayer servers draw unusually severe, repeated complaints about griefing and trolling, with some of the most-upvoted negative reviews in the game's history calling the community among the worst they've encountered in any multiplayer game
  • Persistent technical instability, described even by extremely high-playtime fans as built on old, patched-over code with a wide and long-standing bug list
  • No effective in-game tools to kick or ban disruptive players on many servers, according to multiple reviewers, leaving crews stuck with saboteurs outside of the intended traitor mode

Who it's for: Players who want genuine systemic depth — real physics, real damage modeling, real consequences for a badly welded hull — and are prepared to play primarily with a trusted group of friends rather than public servers. Less suited to anyone hoping for a relaxed co-op experience on public matchmaking, where griefing is a real and frequently reported risk.

Our recommendation: Buy it, but plan to play with people you know rather than jumping into public servers, where the reviews are unusually consistent that trolling and sabotage are common enough to ruin runs. Go in accepting real technical jank as part of the package — even the game's biggest fans describe a long-standing, wide bug list — and treat that as the cost of a genuinely unmatched simulation depth rather than a dealbreaker.

7.5 / 10

Ask Barotrauma's own reviewers what actually kills a run, and the alien leviathans circling your submarine are rarely the answer. Read enough of them and a much more consistent villain emerges: the crew.

A simulation few games attempt

Barotrauma's core appeal is real systemic depth. Every wire in the submarine can be rewired correctly or incorrectly, every reactor requires active management to avoid meltdown, every hull breach floods a specific compartment with real consequences for anyone inside it, and every character can specialise as a doctor, engineer, captain or mechanic with genuinely different responsibilities. Reviewers describe genuinely absurd, specific stories that only this kind of simulation produces — one player recounts playing a doctor character attempting to save patients who turn out to be a smuggling cover, only to be poisoned by a crewmate mid-shift. Another describes the optional traitor mode escalating a routine dive into a slow-burn thriller with a crewmate they'd been chatting amiably with moments before. These aren't scripted moments; they emerge from the simulation itself, and it's genuinely rare for a game to produce them this reliably.

The community problem, reported with unusual consistency

Here's what stands out reading the negative-review corpus: the complaints aren't scattered across many different issues. They cluster hard around one thing, described in strikingly similar language across years. "The community is awful," reads one review bluntly. "Full of literal man children who are determined to make the game as unfun as possible... you can't kick or ban them in-game either." Another, from a player with 820 hours, calls it "the worst community I've ever seen in 20 years of multiplayer gaming." A third, at 226 hours, states that in their experience "not a single person who plays this game is not a troll." This is a genuinely severe, repeated characterization from players who otherwise praise the game's systems in the same reviews — the complaint is squarely about who they're forced to play with on public servers, not about anything Barotrauma's developers built.

Even the fans admit the technical debt

Separately, and worth reporting on its own terms: some of the most detailed negative reviews come from players with extraordinary investment in the game, writing with real reluctance. One reviewer with 1,264 hours opens by noting they'd never expected to write a negative review, doing so on the game's own anniversary, before describing performance built on what they call "seven year old code" supporting "constant updates and patchwork," with bugs numerous and varied enough, in their words, "that one could mistake them for actual gameplay." This isn't a drive-by technical complaint — it's a long-term fan's considered assessment that the simulation's ambition has outpaced its underlying stability even after a full 1.0 release.

Reading the completion data

The achievement curve shows a game with a genuinely accessible entry point and a very long tail. Basic milestones — repairing a device, discovering the game's early biomes — sit at 86.3% and 69.2%, meaning most players engage meaningfully with core systems. The rarest achievements, tied to elaborate late-campaign and hidden content, fall to a fraction of a percent, consistent with a sandbox whose full depth is reserved for a committed minority.

7.5 out of 10. Barotrauma delivers a simulation depth and emergent storytelling that genuinely has no close competitor, and the devotion in its positive reviews — including from players with thousands of hours — is well earned. It's held below the top tier by two specific, honestly reported problems: a public multiplayer community that a striking number of reviewers describe in unusually severe terms, and a persistent technical fragility that even the game's most loyal fans openly acknowledge. Play it with people you trust, expect some jank, and the simulation underneath both problems remains genuinely worth experiencing.

Pros and cons

Pros

  • A genuinely unmatched simulation of submarine systems — reactors, wiring, hull integrity, oxygen — that reviewers say nothing else in the genre replicates
  • The hidden-traitor social deduction mode produces some of the most memorable, frequently-quoted player stories in this library's review research
  • Enormous scope for emergent roleplay, medical, engineering and combat specialisations that players build entire identities around
  • Strong ongoing free content support even after a long, seven-year Early Access period
  • Genuinely frightening atmosphere and creature design that delivers on its survival-horror billing

Cons

  • Public multiplayer servers draw unusually severe, repeated complaints about griefing and trolling, with some of the most-upvoted negative reviews in the game's history calling the community among the worst they've encountered in any multiplayer game
  • Persistent technical instability, described even by extremely high-playtime fans as built on old, patched-over code with a wide and long-standing bug list
  • No effective in-game tools to kick or ban disruptive players on many servers, according to multiple reviewers, leaving crews stuck with saboteurs outside of the intended traitor mode
  • A niche, demanding simulation that some reviewers say starts exciting and becomes repetitive or boring once the core systems are learned
  • Full-price cost draws value complaints from reviewers who feel it should be priced closer to other niche co-op titles given how much its appeal depends on having a dedicated group

Category scores

Category scores are the reviewer's read on each area. They inform the overall score but do not average into it — the number at the top of the page is a judgement, not a calculation.

  • Gameplay 8.5 / 10
  • Progression 6.5 / 10
  • Performance 5 / 10
  • Value 8 / 10
  • Originality 9 / 10
  • Multiplayer 6 / 10