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Kingdom Hearts Birth by Sleep FINAL MIX official Steam artwork

COMMUNITY INTEGRATION

Kingdom Hearts Birth by Sleep FINAL MIXArchipelago randomizer mod

Choose Terra, Ventus or Aqua and turn their journey into a multiworld route. Chests, stickers and story rewards send checks, while world access, movement commands and Wayfinders arrive from other players.

Maintained by Gicu / ssjgicu / gaithern, goblinpope

Installation guide Maintainer repository
Reviewed build
0.2.0
OS
Windows
Last reviewed
9 Sept 2026
Installation
Manual installation

How the game changes

  • Each slot chooses one character, with Terra as the default. Checks and item pools are adapted to that character instead of requiring all three stories in one slot.
  • Chests, stickers, battle bonuses and story rewards are randomized. Received items include movement and defensive commands, abilities, command styles, D-Links, deck-capacity and HP upgrades, key items and world access.
  • Land of Departure remains the starting area. Other worlds are unlock items; optionally start with randomly chosen additional worlds. The default adds none.
  • Collect the three distinct Wayfinders to open the Keyblade Graveyard, then defeat the selected character's final opponent. Placement logic additionally expects a broad set of world unlocks before this late-game route.
  • Aqua can optionally require Final Terra-Xehanort II instead of her usual final encounter. Realm of Darkness is a separate optional world for Aqua, not a change to every character's campaign.
  • Mirage Arena battles, Command Board, arena medal milestones, Disney Town and arena racing minigames, and superbosses are individually optional. They are off by default and can substantially extend a run.
  • Experience defaults to three times normal and can range from one quarter to ten times. The pool includes eight HP upgrades by default, adjustable from zero to nine.
  • Keyblade strength and magic bonuses can be randomized within configurable bounds. Advanced Logic is separate and may require precise jumps and creative command-based movement.
  • DeathLink is toggled with /deathlink in the KHBBS Client rather than a generated YAML option. It uses the companion script to observe and apply deaths while a character is active.
Explore game mechanics

Before you start

  • This Steam listing refers to Birth by Sleep FINAL MIX inside KINGDOM HEARTS -HD 1.5+2.5 ReMIX-. Artwork and popularity belong to that Steam collection, not a separately sold BBS application.
  • The public release is named 0.2.0, but its bundled manifest still declares world 0.1.7 and Archipelago 0.6.3 minimum. Use the actual current release package; do not infer that an older download is identical from the internal version alone.
  • Launch the unmodified game once, then configure OpenKH for the PC Steam installation, install Panacea and the BBS Lua backend, and add gaithern/KH-BBS-AP-LUA as the companion mod.
  • Download khbbs.apworld separately from the release and install it in Archipelago. OpenKH's Build Only action does not produce this file. Generate your room, then install the generated per-player seed ZIP as an additional OpenKH mod.
  • Enable both the companion and the matching seed mod, connect the KHBBS Client to the correct slot, then use OpenKH Build and Run. Choose the same character as the generated slot and start a separate AP save.
  • The maintainer explicitly warns that the game is prone to crashing and asks players to save often. Keep backups and update the companion through OpenKH before rebuilding. Panludia has not independently completed the current release.
  • Arena Global Locations requires ordinary completion state from other character campaigns. Leave it disabled on a fresh game profile or some checks will be unreachable. Arena Medal checks have minimal additional logic and can require substantial grinding.
  • The reviewed companion uses fixed addresses for the global Steam build identified as 1.0.0.2. Japanese-version detection exists, but several address tables do not establish a complete Japanese route. Use the global build; arbitrary later builds, Linux and Proton are not certified here.
  • The game and client exchange files in a shared local KHBBSFMAP directory. Run only one BBS integration instance per user profile, keep the same save and seed together, and stop both components before switching campaigns.
  • Do not treat the presence of reconnect and item-index code as a guarantee of safe offline play. Keep the client connected while progressing. The bundled tutorial reference still points to a different Kingdom Hearts guide; use the BBS release instructions instead.
Read all setup notes