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Open Persistence
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Open source reimplementation of Persistent Players, with fixes and Mod Compatibility
Forge is a popular mod loader for versions 1.1+ of Minecraft.
Neoforge is a fork of the Minecraft Forge available for versions 1.20.1+ of Minecraft. Many Forge mods are compatible with Neoforge and vice versa.
Fabric is a mod loader for versions 1.14+ of Minecraft, particularly popular for client side and optimization mods.
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About
Description
Open Persistence
An open-source reimplementation of Persistent Players, rebuilt for modern Minecraft with bug fixes and mod compatibility.
When a player logs out of a multiplayer server, Open Persistence leaves behind a persistent body — an entity that looks like the player and holds all of their gear, standing where they disconnected. When they log back in, their state is transferred back and the body is removed. While they are away, the body can be killed by other players or mobs, dropping the player's inventory (and updating their offline save data, so the loss sticks).
This makes logging out a meaningful decision on survival/PvP servers: your character stays in the world and remains vulnerable until you return.
Features
- Persistent logout bodies — a player-shaped entity spawns on logout, wearing and holding the player's full inventory and equipment.
- State round-trip on login – inventory, armor, and accessory slots are restored when the player rejoins; the body is then despawned.
- Killable bodies — the body has health and can be slain; doing so drops the player's items and writes the change back to their offline player data.
- Despawn-proof — the body will not vanish on peaceful difficulty or when
doMobSpawning/ mob-spawning gamerules are disabled. It ignores despawn distance and persistence culling. - Accessory support — extra equipment slots are preserved across logout/login.
- Configurable — see Configuration.
Supported versions
Open Persistence is built as a single multiversion project (using the Prism build system) and ships a separate jar per Minecraft version and mod loader.
| Minecraft | Loaders | Loader versions | Accessory compat |
|---|---|---|---|
| 1.12.2 | Forge | Forge 14.23.5.2847 |
ModularWarfare (Shining fork) |
| 1.20.1 | Forge · Fabric | Forge 47.4.18 · Fabric loader 0.18.6 (API 0.92.7+1.20.1) |
Curios (Forge) |
| 1.21.1 | NeoForge · Fabric | NeoForge 21.1.222 · Fabric loader 0.18.6 (API 0.116.9+1.21.1) |
Curios (NeoForge) |
| 26.1 | NeoForge · Fabric | NeoForge 26.1.1.0-beta · Fabric loader 0.18.6 (API 0.145.2+26.1.1) |
Curios (NeoForge) |
Compatibility
Accessory/extra-slot mods are integrated as optional soft dependencies — Open Persistence works fine without them, and detects them at runtime when present.
- Curios (1.20.1+ on Forge/NeoForge) — items in Curios slots are copied onto the body and restored on login. Curios is a Forge/NeoForge-only mod; on Fabric there is no Curios integration and accessory handling is a no-op.
- ModularWarfare (1.12.2, Shining fork) — the original mod's extra-slot compatibility is preserved on the legacy build.
Configuration
| Option | Default | Description |
|---|---|---|
persistCreativePlayers |
true |
Whether players in creative mode also leave a persistent body behind. |
offlinePlayersSleep |
false |
Whether offline bodies lie down (sleeping pose, smaller hitbox). |
debug |
false |
Verbose logging for troubleshooting. |
License
Licensed under the GPL-3.0.
Open Persistence
An open-source reimplementation of Persistent Players, rebuilt for modern Minecraft with bug fixes and mod compatibility.
When a player logs out of a multiplayer server, Open Persistence leaves behind a persistent body — an entity that looks like the player and holds all of their gear, standing where they disconnected. When they log back in, their state is transferred back and the body is removed. While they are away, the body can be killed by other players or mobs, dropping the player's inventory (and updating their offline save data, so the loss sticks).
This makes logging out a meaningful decision on survival/PvP servers: your character stays in the world and remains vulnerable until you return.
Features
- Persistent logout bodies — a player-shaped entity spawns on logout, wearing and holding the player's full inventory and equipment.
- State round-trip on login – inventory, armor, and accessory slots are restored when the player rejoins; the body is then despawned.
- Killable bodies — the body has health and can be slain; doing so drops the player's items and writes the change back to their offline player data.
- Despawn-proof — the body will not vanish on peaceful difficulty or when
doMobSpawning/ mob-spawning gamerules are disabled. It ignores despawn distance and persistence culling. - Accessory support — extra equipment slots are preserved across logout/login.
- Configurable — see Configuration.
Supported versions
Open Persistence is built as a single multiversion project (using the Prism build system) and ships a separate jar per Minecraft version and mod loader.
| Minecraft | Loaders | Loader versions | Accessory compat |
|---|---|---|---|
| 1.12.2 | Forge | Forge 14.23.5.2847 |
ModularWarfare (Shining fork) |
| 1.20.1 | Forge · Fabric | Forge 47.4.18 · Fabric loader 0.18.6 (API 0.92.7+1.20.1) |
Curios (Forge) |
| 1.21.1 | NeoForge · Fabric | NeoForge 21.1.222 · Fabric loader 0.18.6 (API 0.116.9+1.21.1) |
Curios (NeoForge) |
| 26.1 | NeoForge · Fabric | NeoForge 26.1.1.0-beta · Fabric loader 0.18.6 (API 0.145.2+26.1.1) |
Curios (NeoForge) |
Compatibility
Accessory/extra-slot mods are integrated as optional soft dependencies — Open Persistence works fine without them, and detects them at runtime when present.
- Curios (1.20.1+ on Forge/NeoForge) — items in Curios slots are copied onto the body and restored on login. Curios is a Forge/NeoForge-only mod; on Fabric there is no Curios integration and accessory handling is a no-op.
- ModularWarfare (1.12.2, Shining fork) — the original mod's extra-slot compatibility is preserved on the legacy build.
Configuration
| Option | Default | Description |
|---|---|---|
persistCreativePlayers |
true |
Whether players in creative mode also leave a persistent body behind. |
offlinePlayersSleep |
false |
Whether offline bodies lie down (sleeping pose, smaller hitbox). |
debug |
false |
Verbose logging for troubleshooting. |
License
Licensed under the GPL-3.0.
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