Upgrade Iron 1
DefaultPurchase Iron 1 to send this upgrade check.

COMMUNITY INTEGRATION
Turn mining and dome defence into multiworld progression, with upgrades or guild assignments unlocked by items from other games.
Maintained by Arrcival
Browse possible checks, rewards and settings. What appears in your game depends on your World options.
The source table registers 790 names, but valid item pools generate only 291 distinct checks; the remaining 499 are switch IDs beyond the maximum per-layer count. With default Huge layer progression and randomized equipment, one room has 43–76 checks. The APWorld’s completion condition follows its item rules; Mining Everything and Assignment Completion Goal are forwarded to the mod but are not used by that predicate.
Browse the gameplay families that can send checks to your multiworld.
Purchase Iron 1 to send this upgrade check.
Purchase Iron 2 to send this upgrade check.
Purchase Iron 3 to send this upgrade check.
Purchase Iron 4 to send this upgrade check.
Purchase Water 1 to send this upgrade check.
Purchase Water 2 to send this upgrade check.
Purchase Water 3 to send this upgrade check.
Purchase Water 4 to send this upgrade check.
Purchase Iron and Water 1 to send this upgrade check.
Purchase Iron and Water 2 to send this upgrade check.
Purchase Iron and Water 3 to send this upgrade check.
Purchase Iron and Water 4 to send this upgrade check.
Find the Cave in mine layer 1 to send this check.
Find the Cave in mine layer 2 to send this check.
Find the Cave in mine layer 3 to send this check.
Find the Cave in mine layer 4 to send this check.
Find the Cave in mine layer 5 to send this check.
Find the Cave in mine layer 6 to send this check.
Find the Cave in mine layer 7 to send this check.
Complete Showdown in regular mode for this assignment check.
An Archipelago slot exchanges checks and items with other games. Shared-world co-op and every recovery scenario have not been independently verified.