Screenshots
Watch trailer on Steam ↗Internal Extraction
LuisDev · Published by LuisDev
Content notice: This game includes mild blood, combat against humans and creatures, and the use of adrenaline injections.
Mostly Positive — 71% positive (24 reviews)
Last updated 28 Sept 2026
A co-op survival horror on a destructible, procedurally generated planet. Explore abandoned facilities, mine resources, and craft what you need to survive the radiation.
£6.69
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Action, Adventure, Indie · 2025 · More £5 - £15 games
Embark on a thrilling adventure where you and friends navigate abandoned facilities and mine resources on a procedurally generated, destructible planet. Survive the radiation by crafting what you need, all while LuisDev guides your journey through this survival horror experience.
About this game
A co-op survival horror on a destructible, procedurally generated planet. Explore abandoned facilities, mine resources, and craft what you need to survive the radiation.
Plan the Day
Plan your day, assign tasks, and prepare before leaving the base. Every expedition counts, and poor planning can get everyone killed.
Mine and Build
Mine for resources across a fully destructible world. Use your tools to dig tunnels, build bridges, and reach deep areas rich in materials.
Explore the Depths
Explore underground facilities filled with valuable loot and hidden dangers.
Craft to Survive
Craft weapons, tools, and survival gear to improve your chances of staying alive.
Fuel the Shield
Keep your shield powered or the radiation will take everything.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 (64-bit)
- Processor: AMD Ryzen 3 1200 / Intel Core i3-7100
- Memory: 8 GB RAM
- Graphics: AMD Radeon RX 460 / NVIDIA GTX 950
- DirectX: Version 11
- Network: Broadband Internet connection
- Storage: 2 GB available space
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
*languages with full audio support
Latest news
Patch NotesOfficial
Save System Implemented
This update introduces the save system for the game. You can now create, select, and delete worlds. Your progress, inventory, placed objects, and important states are saved and loaded correctly.Read full article on Community Announcements (LuisDev)
