Turn Core Keeper into a multiworld expedition with crafting licenses, equipment and reward caches arriving from other games. Choose a boss goal and expand your checks across mining, combat, crafting, fishing and exploration.
The 1,182 source-defined checks span 25 option groups and four goal scopes. The default Core Commander goal includes 10 boss checks plus 29 raw-material, 12 refined-material, 12 locked-chest, 14 seed, 22 food and 39 enemy checks, for 138 checks in total. Other groups and later-goal scopes remain conditional; the catalog does not imply that every possible check appears in one generated room.
Actions and milestones that can send a check to your multiworld.
1,182 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.
Collect Bone Creole
Collect Bone Creole to send this check.
Valuables
Collect Geode
Collect Geode to send this check.
Valuables
Collect Ammonite
Collect Ammonite to send this check.
Valuables
Collect Triangle Trinket
Collect Triangle Trinket to send this check.
Valuables
Collect Rusty Spoon
Collect Rusty Spoon to send this check.
Valuables
Collect Caveling Skull
Collect Caveling Skull to send this check.
Valuables
Collect Twisted Agate
Collect Twisted Agate to send this check.
Valuables
Collect Old Amulet
Collect Old Amulet to send this check.
Valuables
Collect Ear Plate
Collect Ear Plate to send this check.
Valuables
Collect Amber Fish Egg
Collect Amber Fish Egg to send this check.
Valuables
Collect Golden Starfish
Collect Golden Starfish to send this check.
Valuables
Collect Grub Knot
Collect Grub Knot to send this check.
Valuables
Collect Golden Cocoon
Collect Golden Cocoon to send this check.
Valuables
Collect Grub Pearl
Collect Grub Pearl to send this check.
Valuables
Collect Mucus Amoeba
Collect Mucus Amoeba to send this check.
Valuables
Collect Blood Skull
Collect Blood Skull to send this check.
Valuables
Collect Parasite Fossil
Collect Parasite Fossil to send this check.
Valuables
Collect Petrified Egg
Collect Petrified Egg to send this check.
Valuables
Collect Soft Sponge
Collect Soft Sponge to send this check.
Valuables
Collect Caveling Perfume
Collect Caveling Perfume to send this check.
Valuables
Playing with others
Each connected client exchanges checks and items through its Archipelago slot. Shared native-world co-op and recovery across every guest/host scenario are not established by this static review.
Known scope and limitations
This listing reviews prerelease 1.2.0-rc.2 for Core Keeper 1.3.0.4, Steam build 25625027, with Archipelago 0.6.7 or newer. Windows is the documented setup reviewed here; Linux and other editions are not verified.
Install the matching mod ZIP manually from the linked client release into CoreKeeper_Data/StreamingAssets/Mods. The maintainer says the mod.io stable release was not updated for this prerelease. Remove or disable older duplicate copies and keep the APWorld, mod and tracker versions aligned.
Generate a new room to use the added checks. Back up saves and use a dedicated character for testing; the reviewed code does not establish complete isolation or reliable recovery when switching rooms or restoring saves.
Some tracker access hints differ from the World rules, and equipment option descriptions do not fully match how a constrained reward pool is selected. Treat the tracker as guidance rather than proof that a check is reachable.
Connection recovery exists, but static review found gaps around checks made before login and item delivery interrupted by saving, reconnecting or changing game state. A completed multiworld playthrough was not independently verified.
The optional texture helper requests administrator access and has unresolved file-handling and dependency-notice evidence. The texture-free tracker works without that helper.
The native connection form does not preserve an explicitly entered secure scheme, and password storage is not protected by the integration. Connection confidentiality is not established by this review.
DeathLink has unresolved state-restoration cases across interruptions. Leave it disabled if you do not want shared deaths during testing.