Core Keeper Save File 100% – All Bosses + All Biomes Explored
100% complete save file for Core Keeper PC. Every boss defeated (Glurch, The Ghorm, Morpheus, Igneous, The Hive Mother, Malugaz, Ra-Akar), every biome fully explored and lit, all character skills maxed, the entire Tech Tree unlocked, and all Steam achievements complete.
| Game | Core Keeper |
| Developer | Pugstorm |
| Platform | PC (Steam) |
| Version | Latest Update (all free content included) |
| Completion | 100% — All Bosses Defeated + All Biomes Explored + Max Skills |
| World | Fully explored (Dirt, Clay, Mold, Desert, Jungle, Ocean, Azeos' Wilderness) |
| Steam App ID | 1621690 |
| Save Path | C:\Users\[Username]\AppData\LocalLow\Pugstorm\Core Keeper\Steam\[SteamID]\Slot1\ |
| Save File | World1.db + Players folder |
| File Size | ~15 MB (ZIP) |
| Last Updated | August 2026 |
Important: Core Keeper saves are tied to your SteamID64, and the world file only loads correctly inside the matching numbered folder — always back up your existing Slot1 folder before replacing it, especially if you're playing in an active co-op world with friends.
C:\Users\[YourUsername]\AppData\LocalLow\Pugstorm\Core Keeper\Steam\ and open the folder matching your SteamID64.Slot1 folder by copying it elsewhere.Slot1 folder.World save format: Core Keeper stores each world as a folder containing the world database (terrain, structures, chests) plus a Players subfolder tracking individual character skills and inventory. This save includes a fully explored, fully cleared world along with a maxed-out character, so hosting it for co-op will show all bosses as defeated for anyone who joins.
C:\Users\[Username]\AppData\LocalLow\Pugstorm\Core Keeper\Steam\[SteamID64]\Slot1\, containing the world database and a Players subfolder. Steam App ID 1621690.Core Keeper is a top-down sandbox survival game developed by the Swedish studio Pugstorm, released into early access in March 2022 and hitting full 1.0 release in 2024. Players wake up in a vast, procedurally generated underground world after being resurrected by a mysterious ancient Core, and must dig, build, farm, and fight their way outward — think Terraria's crafting and boss-progression loop, but viewed from above and set entirely underground, with a cozy pixel-art aesthetic.
The core loop revolves around exploring outward from the starting biome, unlocking new tools and gear through the Scanner's tech tree, and defeating a sequence of increasingly powerful bosses that each guard access to a new biome and set of resources. Along the way, players develop farms, automated mining operations, and elaborate base decorations, while a skill system tracks and rewards repeated use of combat styles and gathering tools. The game supports up to 8-player online co-op, with one player's machine typically hosting the shared world.
Since launch, Pugstorm has continued adding free content updates introducing new biomes like Azeos' Wilderness, additional Titan-tier boss fights, cooking and fishing systems, and quality-of-life improvements. A fully "100%" world means every boss defeated, every biome lit up and mapped, the entire tech tree unlocked, and every character skill maxed — a milestone that typically takes 60-100+ hours of underground digging, farming, and boss fights to reach legitimately.