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ATLYSS official Steam artwork

COMMUNITY INTEGRATION

ATLYSSArchipelago randomizer mod

Turn an action-RPG character into a multiworld adventure. Bosses, quests and levels send checks while received portals and equipment shape your route through ATLYSS.

Maintained by Blitz0 / Blitz0070

Reviewed build
0.2.2 preview
OS
Windows
Last reviewed
9 Sept 2026
Installation
Manual installation

How the game changes

  • Even character levels, major bosses and completed quests send checks. Achievement checks and shop purchases are configurable, and shorter goals trim later locations.
  • Choose one of six major bosses, all bosses, all tracked quests or level 32 as the goal. The inspected default is Slime Diva, despite an outdated comment naming Galius.
  • Area access uses separate Progressive Sanctum Portal and Progressive Tuul Portal lines by default. Random Portals replaces those lines with individual area and dungeon-floor unlocks.
  • Gated equipment distributes progressive gear lines; unrestricted equipment shuffles individual pieces. Optional class filtering limits class-specific gear without removing universal items.
  • Received equipment and consumables are collected from Spike's storage. Crowns and portal unlocks apply directly; logical quest or level events are not physical loot.
  • Profession tools may stay on their original checks or enter the item pool. Only the first fishing-rod or pickaxe purchase sends its shared check; later purchases remain normal.
  • XP and crown income can be adjusted separately. The supplied Short Run preset targets Slime Diva with doubled XP, gated gear and achievements disabled; Boss Hunter targets all bosses.
  • The mod retries unexpected disconnections and rechecks saved quest and level progress after reconnect. Intentional save-and-quit disconnects do not trigger automatic reconnection.
Explore game mechanics

Before you start

  • This is an actively developed preview, not a stable release. Use the APWorld and game DLL from the same GitHub release with Archipelago 0.6.7 or later.
  • Release 0.2.2 still declares world version 0.2.0 internally. Thunderstore uses a separate package number, 0.2.4; do not infer compatibility from the displayed numbers alone.
  • Install BepInEx 5.4 and the plugin, or use the maintainer's r2modman profile instructions. The mod manager does not install the APWorld into Archipelago for you.
  • Enter room details in Settings > Archipelago, then create or load a character before pressing F5. The connection cannot start from the main menu without a loaded save.
  • Use a separate character and keep backups for each run. Resending saved milestones after reconnect is documented, but complete offline delivery and all co-op combinations are not independently verified.
  • Shop checks are not immediately available at the start: the current release gates them behind the normal Catacombs portal progression. More XP does not replace required portal or equipment items.
  • DeathLink is described as a client setting, but the released APWorld options do not expose a DeathLink field. Do not assume that a YAML toggle alone enables it.
  • Only the Windows Steam setup is established here. A general mod-manager reference to Linux is not proof that this integration works under Proton.
Read all setup notes

This integration is maintained independently of Panludia. Downloads are provided by its maintainer. Contact the maintainer through the linked repository or support channels.

View ATLYSS on Steam