Verdict
Once Human is a free survival MMO with real teeth — a genuinely inventive bestiary and a deep base-building toolset — held back by a crafting loop that feels imported from a dozen other games and a monetization layer you can't ignore forever.

Once Human arrived in mid-2024 promising something genre veterans rarely get: a survival MMO with an actual point of view. Two years and several seasons later, Starry Studio's NetEase-backed game has settled into a strange, compelling shape — part crafting sim, part looter, part base-building playground, stitched onto a world that looks like nothing else on Steam right now. We spent a full season back in it to see whether it's grown into its ambitions or just gotten better at hiding the seams.
The essentials
The pitch: twenty years after a cosmic event called Starfall infects the planet with a mutagenic substance and the horrors it spawns, you're a hunter picking through a quarantined open world to survive, build, and figure out what happened. It's free-to-play on PC (and mobile), server-based, with seasons that periodically wipe and reset the world — a structure closer to a live-service shooter than a traditional survival game.
The star of the show is the "deviant" bestiary: mutated creatures that fuse organic and inorganic matter into genuinely disturbing, sometimes darkly funny silhouettes — a lumbering hulk stitched into a business suit, enemies with spotlights for heads, insectoid horrors built from scavenged machinery. It's the single most distinctive thing Once Human has going for it, and it carries the game's identity in a way few free-to-play open worlds manage. Deviants aren't just enemies, either — you capture and deploy them as companions who fight, gather, and work your base, which threads the horror concept directly into the moment-to-moment loop.
The experience
Where Once Human genuinely shines is base-building. The construction toolset is deep, modular, and rewards actual planning — you're not just placing prefab walls, you're designing functional structures with real strategic upside for defense, resource automation, and Deviant management. It's the kind of system that swallows hours without you noticing, and it's clearly where the design team's attention went.
The survival and crafting half of the loop is the weaker sibling. Gathering, cooking, base necessities, gear tiers — it all works, but it rarely feels like it belongs to Once Human specifically. It plays like a checklist of systems borrowed wholesale from the genre's established hits, present because the genre demands them rather than because they add something new. Combat sits in the same middle ground: serviceable gunplay, occasionally chaotic in group fights against bigger Deviants, but not a reason on its own to boot the game up.
Performance has come a long way since a rocky 2024 launch that suffered stutter and frame-time spikes. On current builds it runs considerably smoother, and the open world — irradiated farmland, waterlogged suburbs, industrial ruin — is genuinely atmospheric to explore, especially at night when the Deviants come out in force.
The limitations
Two things keep Once Human from being an easy recommendation. First, the seasonal server structure means your progress isn't permanent — a new season can reset the world, which is a deliberate design choice that rewards fresh starts but will frustrate anyone who wants a single persistent character to grow indefinitely. Second, as a NetEase live-service title it leans on a gacha-adjacent economy for cosmetics and some gear rolls; nothing we hit felt mandatory to progress through the early-to-mid game, but the drip of premium currency prompts and battle-pass-style content is a constant low hum in the background, and it gets louder the longer you stay.
It's also, structurally, a game asking for your calendar as much as your attention — seasonal events, limited-time content, and server community dynamics reward players who show up regularly rather than those who want to dip in for a weekend.
Who it's for
If you like Palworld, Ark, or Rust but want a story-driven, body-horror-flavored wrapper around the formula — and you don't mind a live-service cadence — Once Human is one of the better free options on Steam right now, especially given how far it's come since launch. Steam's community score sits solidly positive, reflecting a game that's found its audience even if it hasn't won over everyone.
Verdict
Once Human doesn't reinvent survival-crafting, and it doesn't try very hard to hide that. What it does have is a genuinely original creature-design hook, a base-building system with real depth, and a world worth wandering — all for free. It's an easy game to like in short bursts and a demanding one to commit to long-term, held back just enough by generic systems and monetization pressure that it lands as a strong recommendation rather than an essential one.
Rating: 7.4/10
Pros
- Inventive, unsettling Deviant creature design and world-building
- Deep, LEGO-like base-building with real strategic payoff
- Free to play with a generous early content pace
- Runs and performs noticeably better than at 2024 launch
Cons
- Survival and crafting systems feel generic and stapled onto the core loop
- Gacha-adjacent gear rolls and a live-service cadence push toward spending
- Server-based seasons mean progress resets, which won't suit everyone
