10M+ Players worldwide
4.6 ★ Steam rating
100% Free to play
50GB Content
PC Windows 10/11

Core Experience

What Awaits You

Six pillars of an experience unlike any other survival game.

🗺️

Massive Open World

Explore a vast, contaminated landscape filled with mysteries, environmental storytelling, and hidden dangers at every turn.

🔫

Craft & Upgrade

Forge lethal weapons and gear from scavenged materials. Deeply customize your loadout to dominate every threat.

🏗️

Build Your Base

Construct and fortify your settlement. Expand your territory and create an impregnable haven in enemy territory.

👥

Solo or Co-op

Face the apocalypse alone or unite with up to four survivors. Form alliances and conquer together.

🧟

Fight Aberrants

Face horrifying mutated creatures and eldritch entities corrupted by the Stardust. Every encounter is life or death.

⚔️

Seasonal Content

Each season resets the world with fresh story chapters, new weapons, and game-changing narrative events.

Official Gameplay

Enter the Dark World

Immerse yourself in a dark, eerie sci-fi horror atmosphere where Stardust has contaminated everything — and everyone.

⏰  Season ends in --:--:-- Don't miss the seasonal content

▶  Install Free   — Don't Miss the Season
Once Human — contaminated open world panorama
The Contaminated World

A World
Reshaped by Stardust

Every biome has been twisted beyond recognition. Beauty and horror coexist — and only the strongest survive long enough to witness both.

Get Started

How to Play

Three simple steps to enter the post-apocalypse.

01

Get It on Steam

Click the button below — it opens the official Steam page. Hit "Play Game" to add it to your library for free.

02

Install on Your PC

Steam downloads and installs the game on your Windows PC automatically. About 50 GB of free disk space needed.

03

Launch & Play

Launch from Steam, create your character, pick a server — and survive the contamination.

Community Voices

What Players Say

Thousands of reviews — mostly positive on Steam.

★★★★★

"The atmosphere is unlike anything I've experienced in a survival game. The contamination mechanics genuinely feel eerie and dangerous."

— DarkWanderer_88 · 620 hrs on record

★★★★★

"Free to play with this level of quality is insane. Base building, co-op, seasonal events — there's always something to do."

— NightStalkerX · 430 hrs on record

★★★★☆

"The world design is absolutely cinematic. Every biome tells a story. I got completely lost for weeks and loved every minute."

— SilentHorizon · 280 hrs on record

Before You Download

System Requirements

Ensure your PC can handle the apocalypse.

Minimum Configuration
  • OSWindows 10 64-bit
  • CPUIntel Core i5-4460
  • RAM8 GB
  • GPUGTX 1060 3 GB
  • DirectXVersion 11
  • Storage50 GB HDD
  • NetworkBroadband required
Recommended Configuration
  • OSWindows 10/11 64-bit
  • CPUIntel Core i7-7700
  • RAM16 GB
  • GPUGTX 1070 8 GB
  • DirectXVersion 12
  • Storage50 GB SSD
  • NetworkBroadband required

⚠ Windows PC only — Mac and Linux are not supported at this time.

The World Won't Wait

Join Millions of Survivors

The contamination spreads. Your story begins now — completely free on Steam.

Privacy

No personal data collected. Download links redirect to Steam via affiliate tracking (Wendiro). Anonymous analytics only. Cookies may be set for attribution — disable them anytime in your browser. Contact: [email protected]