Core Keeper

Underground mining sandbox with crafting, base building, and online co-op

Pugstorm · Published by Fireshine Games, bilibili · Released Aug 27, 2024

Reviews: Very Positive; 93% of 67K
Recent reviews: Very Positive; 91% of 449 in 30 days
Playing now: 5,678; right now
Steam Deck: Verified
Last update: 2 days ago; Sep 21, 2026

What is Core Keeper?

An open-world pixel-art mining sandbox set in an underground cavern. Alone or in online co-op, you gather resources, craft equipment, build and automate a base, explore biomes, and fight monsters and Titans while uncovering the Core's power.

For you if...

+you like setting your own pace in open worlds
+you enjoy alternating combat with quieter sandbox activities
+you want solo play and drop-in online co-op

Not for you if...

−you prefer guided campaigns over open-ended sandbox play
−you want combat without resource gathering or crafting
−you want farming without dangerous cave exploration

What players say

93% of 66,583 reviews are positive · 91% of 449 in the last 30 days

Players praise the early exploration and progression, creative base building, pixel art, and co-op. Common complaints focus on repetitive late-game biomes and bosses, grindy progression, limited weapon variety, and weak or awkward summoner builds.

Screenshots and trailer

Core Keeper system requirements

As published by the developer.

Minimum

OS: Windows 10 64-bit
Processor: Intel Core i5-2300 / AMD Ryzen 3 1200
Graphics: GeForce GTX 460 / Radeon HD 5850
Memory: 8 GB RAM

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, Linux
Achievements: 59
Steam features: Cloud saves, Family Sharing

Steam Deck: Verified

All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

Multiplayer and co-op

Languages

Text only: English, Simplified Chinese, Thai, German, Japanese, Korean, Spanish - Spain, French, Italian, Portuguese - Brazil, Traditional Chinese, Russian, Ukrainian.