AlmostPerWorlds

A minimal, Folia-safe fork of PerWorlds that does exactly one thing: keeps each configured world group on its own inventory, ender chest, XP, food/health, and (optionally) game mode - so worlds managed by Worlds (or anything else) don't share a single inventory across the whole server.

WARNING: Made with AI (cuz idk how to use Java)

PLEASE SUPPORT THE ORIGINAL DEVELOPER

I am a random dev, and you should really not trust random stuff you find on the Internet. Take a look at the source code which is only a few hundred lines long. (click on the GitHub "view source" link on the side). And if you prefer, compile the project yourself with mvn clean package (requires Java JDK 21+ and Maven installed).

What's ported vs. what isn't

Ported (player-scoped, safe on Folia):

• Inventory, armor, off-hand
• Ender chest
• XP / level
• Food level, saturation, exhaustion
• Health
• Potion effects
• Location (x/y/z, rotation and which world of the group) - when a player re-enters a group from another group they're teleported back to where they last were in it. First visits are never teleported. Disable with restore-location: false in config.yml.
• Game mode - always saved per group, so it never leaks between groups. A player who returns to a group gets back the game mode they had there. /almostperworlds gamemode <group> <mode> only sets the starting game mode for players who have never been in that group (e.g. creative in your test world); it is never re-applied to returning players.

Deliberately dropped (world-scoped, unsafe on Folia / not needed since "Worlds" owns this):

• Time, weather, difficulty/hardcore, game rule, and world border syncing across a group's worlds
• Chat/tablist per-group behavior
• Multiverse-Inventories / MyWorlds importers
• The net.thenextlvl.* command framework, i18n bundle, metrics, and version checker the original plugin depended on - replaced with a plain CommandExecutor/TabCompleter and no external runtime dependencies besides the Paper API itself, so this builds against nothing but paperweight.paperDevBundle(...).

The dropped features all required reading or writing a second world's state synchronously from inside an event fired on a different world/region - that's the part that isn't safe on Folia's per-region threading model (and is exactly what the original author's commented-out // foliaSupported = true line was flagging). Everything kept here only ever touches the single player who triggered the event, dispatched through Bukkit.getAsyncScheduler() for file I/O and player.getScheduler() to apply the result - the standard Folia-safe pattern for entity-scoped work. It also runs fine on regular (non-Folia) Paper.

Commands

/almostperworlds create <name>
/almostperworlds delete <name>
/almostperworlds addworld <group> <world>
/almostperworlds removeworld <group> <world>
/almostperworlds list
/almostperworlds info <group>
/almostperworlds gamemode <group> <survival|creative|adventure|spectator|clear>

(alias: /apw, permission: almostperworlds.command.group)

Worlds not assigned to any group all share one implicit "default" bucket - same as vanilla, so nothing is lost for worlds you never group.

Building

./gradlew shadowJar

The output jar will be at build/libs/almost-per-worlds-<version>-all.jar.

NOTE

Technically you could also use ./gradlew build which generates build/libs/almost-per-worlds-<version>.jar, which is the same as the -all version since Shadow isn't actually used in this project for now.

Install

Requires Worlds (or your own world manager) to actually create the worlds - AlmostPerWorlds only groups worlds that already exist and are loaded when you run addworld.