Build Your Base. Hunt the Monsters. Survive Once Human.

Explore a post-apocalyptic open world corrupted by Stardust. Scavenge resources, craft 100+ weapons, build and defend your territory, and fight terrifying aberrations — solo or with a squad. Free on Steam. Windows PC.

Don't Just Play — Survive Free
No purchase No credit card 90 GB required Windows 10/11 only

By installing you agree to our Terms of Use and Privacy Policy. Independent affiliate page.

How to Start

Your Survival
Starts Here.

Three steps. No separate launcher required.

1

Click "Download Free on Steam"

Steam opens and queues the download immediately. No Steam? It installs in about 2 minutes.

2

Download & Install the Game

Large install — plan for up to 90 GB free space. SSD strongly recommended. Pausable anytime.

✓

Launch → Create Your Character

No paywall. No tutorial gate. Create your character and the world opens immediately.

Claim Your Place — Download Free

System Requirements

Operating System
Windows 10 / 11
No Mac. No Linux. No mobile.
Free Disk Space
Up to 90 GB
SSD recommended — HDD causes slow loads
Platform
Steam (Free to Play)
No separate launcher required
Connection
Always Online
Stable internet connection required

Most Common Install Failure

If your install fails silently: check that you have 90 GB free — not 55 GB. Low disk space is the #1 silent failure cause.

Before you play — quick check
  • Windows 10 or 11 required — not Mac, not mobile
  • Up to 90 GB free disk space — SSD strongly recommended
  • Internet connection required — always-online game
Game World

A Fallen World
Waiting to be Claimed.

Once Human — combat
Once Human — post-apocalyptic world
Post-Apocalyptic World
Once Human — open world
Open World
Once Human — combat
Intense Combat
Once Human — player
Customize & Survive
Why Once Human

Explore. Craft.
Conquer.

Unleash your survival skills and build your world of adventure.

🧟
Survival That Punishes Complacency

Manage hunger, water, and sanity under Stardust contamination. The world decays — and so do you — if you stop moving.

Open World
🔫
100+ Gun Blueprints to Hunt Down

Collect, craft, and mod over 100 gun blueprints. Loot loop built around gear progression — not level grinding.

Weapons & Loot
🏗️
Base Building With a Real System

Build and hold your Territory Core. Design, expand, and relocate your base. Other players can see it. Make it count.

Territory
👥
Survive Together or Alone

Full solo progression or co-op squad play. PvE and PvP server types available. Choose at character creation.

Co-op & PvP
Real Numbers

The Community
Is Already There.

Every number sourced from a named public source — no inflated claims.

231k+
All-Time Peak Concurrent Players
SteamDB
166k+
Steam Reviews (Total)
Steam Store
792k+
Official Discord Members
Discord Server
★★★★★

"The base building system is genuinely deep. One of the best survival games in years — and it's completely free."

Steam Community Forum
★★★★☆

"The Stardust contamination mechanic changes how you think about exploring. Not just another survival clone."

Steam Review
★★★★★

"Played with two friends on day one — had a base started within the hour. Great co-op from the very first session."

Steam Community Forum
Quick Answers

Still Have
Questions?

Yes — Steam lists Once Human as Free to Play. No purchase, no subscription. Optional cosmetic purchases exist but nothing is required to progress.
Steam's system requirements page lists 90 GB available space — the accurate figure covering patches and swap files. Installing below 90 GB risks silent failure.
Both. Full solo progression is supported. Choose your server type at character creation.
PvE and PvP server modes both exist. On PvE servers, player raiding is restricted. You pick at character creation.
This page is for the Steam PC version on Windows — where the full feature set runs at maximum depth and fidelity.
Check: (1) 90 GB of free disk space. (2) SSD if possible. (3) GPU drivers up to date. The official Discord has active support channels.
Most players are engaged within the first session. With a friend: 30–60 minutes before you have a base started and real fights underway.
Ready to Survive?

Join the Fight.
It's Completely Free.

Download Once Human today and unlock exclusive in-game rewards. Windows PC. Up to 90 GB. No purchase required.

Download Once Human — Free Steam Store Page →

Windows 10/11 only · Up to 90 GB · No purchase required