Turn repeated Spire runs into a multiworld campaign. Card and relic rewards can help other players, while incoming items unlock characters, equipment and the next steps of your own run.
This release defines 1,380 addressable location candidates across five official and five custom-character templates. The default Ironclad setup activates 72 checks; other character profiles and sanity options expand or change that set. Three boss events per configured character are local logic events without network location IDs.
Actions and milestones that can send a check to your multiworld.
1,380 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.
Ironclad Card Reward 1
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Card reward check Ironclad Card Reward 1.
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Ironclad Card Reward 2
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Card reward check Ironclad Card Reward 2.
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Ironclad Card Reward 3
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Card reward check Ironclad Card Reward 3.
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Ironclad Card Reward 4
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Card reward check Ironclad Card Reward 4.
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Ironclad Card Reward 5
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Card reward check Ironclad Card Reward 5.
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Ironclad Card Reward 6
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Card reward check Ironclad Card Reward 6.
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Ironclad Card Reward 7
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Card reward check Ironclad Card Reward 7.
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Ironclad Card Reward 8
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Card reward check Ironclad Card Reward 8.
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Ironclad Card Reward 9
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Card reward check Ironclad Card Reward 9.
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Ironclad Card Reward 10
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Card reward check Ironclad Card Reward 10.
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Ironclad Card Reward 11
Card reward check Ironclad Card Reward 11.
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Ironclad Card Reward 12
Card reward check Ironclad Card Reward 12.
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Ironclad Card Reward 13
Card reward check Ironclad Card Reward 13.
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Ironclad Card Reward 14
Card reward check Ironclad Card Reward 14.
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Ironclad Card Reward 15
Card reward check Ironclad Card Reward 15.
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Ironclad Card Reward 16
Card reward check Ironclad Card Reward 16.
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Ironclad Card Reward 17
Card reward check Ironclad Card Reward 17.
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Ironclad Card Reward 18
Card reward check Ironclad Card Reward 18.
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Ironclad Card Reward 19
Card reward check Ironclad Card Reward 19.
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Ironclad Card Reward 20
Card reward check Ironclad Card Reward 20.
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Playing with others
Single-player game runs connected to a synchronous or asynchronous Archipelago room. Each slot has its own progression; native Slay the Spire 2 co-op is not supported by this integration.
Known scope and limitations
Use client 1.1.2 with the spire2.apworld supplied in the same release, whose manifest is 1.1.1. The host needs Archipelago 0.6.7 or later. The reviewed client targets public game 0.107.1 and includes beta 0.111.0 compatibility code; later game updates require a fresh compatibility check.
Install RitsuLib first. For a manual setup, extract Archipelago.zip into the game mods folder with its DLL, PCK and included APWorld together under mods/Archipelago. Workshop installation is also offered; its files can change independently of this archived release.
The release template still describes Windows as required, while a project collaborator reports Linux working after the move to RitsuLib. The client is managed code. Neither this review nor that report establishes every Linux, Proton or later game-version combination. Use the Archipelago launcher to install the APWorld if the in-game shortcut has no file association.
Major/minor World differences and missing or different compatibility flags produce a confirmation warning; accepting it does not verify compatibility. Patch-only differences connect silently. Leave the current slot before moving an active run to another room or slot.
The source includes a campfire fallback when no native action is usable, including a deck with no upgradeable cards. With Shopsanity and Goldsanity together, however, the World assigns the last shop gold threshold to the Act 2 shop and leaves Act 3 without its intended explicit gold gate.
Back up local mod data and the room before changing versions. Normal checkpoints are stored on the AP server at selected points. Local recovery files do not validate the complete room-and-slot identity, and recovery and pending-check writes are not transactional.
Stay connected for the final victory. The current victory handler returns while offline and does not retain that victory for automatic resubmission. Successfully journaled location checks have a separate reconnect/replay path.
Very early checks can be missed before location scouting finishes. Interrupted or failed reward application is also not atomic with its delivery counters; a successful login is not a guarantee that every reward or check has been applied.
Room passwords are saved as plaintext in local connection settings. An explicit wss:// address requires encrypted transport; a bare hostname can fall back to plaintext. Keep the connection file private.
The source carries a BSD-3 license, but full notices are absent from the downloaded client and World packages. This review inspected source, managed assemblies and UI resources without running the game or independently rebuilding the whole release.