
Sync Re-Forged
One mind. Many bodies. Transfer your consciousness between shells.
About this Mod

Sync (NeoForge)
One mind. Many bodies.
This is a NeoForge port of Sync, originally developed by Kir_Antipov for Fabric, which itself is a reimplementation of the original Sync mod by iChun.
This mod provides clones, or as we like to call it, "shells". These shells are basically new individuals, with their own inventory, experience level, and even gamemode.
However, they lack a mind that would control them. That's where the player comes in. Each shell is biometrically tied to the player whose sample was used to create it, and allows the player to "sync" their mind with it, essentially creating multiple player instances.
Crafting Recipes
Shell Constructor:

Shell Storage:

Treadmill:

How to Play
Craft a Shell Constructor and place it down.
Provide it with a sample by right-clicking the constructor.
- ⚠️ WARNING: This will deal 20 damage (40 in Hardcore)! Eat a golden apple to increase your max health, or hold a Totem of Undying to survive.
The shell constructor needs power to work. Place a Treadmill next to it and lure a pig, wolf, or other entity onto it to generate energy.

Once your shell is constructed, craft a Shell Storage and place it down.
Supply it with power (redstone if enabled in config, or Forge Energy from tech mods/treadmills).
Once the doors open, walk into it.
You'll see a radial menu displaying your shells:

Select the shell you want to sync with!
Features
- Cross-dimensional syncing - Transfer between shells anywhere in any dimension
- Color-coding - Right-click shell storage with dye to organize your shells
- Hopper integration - Equip armor and items onto shells via hoppers
- Comparator output - Measure shell construction progress or inventory fullness
- Tech mod compatibility - Power shell storage with Forge Energy from any mod
- Death protection - If a shell dies, you sync back to your original body (or another shell)
- Silk Touch required - Shell Storage and Shell Constructor require Silk Touch to retrieve
Configuration
Config is located at ./config/sync-common.toml
| Option | Description | Default |
|---|---|---|
enableInstantShellConstruction |
Construct shells instantly without energy | false |
warnPlayerInsteadOfKilling |
Warn instead of kill if player has insufficient health | false |
fingerstickDamage |
Damage dealt when creating a shell | 20.0 |
hardcoreFingerstickDamage |
Damage in Hardcore mode | 40.0 |
shellConstructorCapacity |
Energy required to construct a shell | 256000 |
shellStorageCapacity |
Shell storage battery capacity | 320 |
shellStorageConsumption |
Energy consumed per tick | 16 |
shellStorageAcceptsRedstone |
Allow redstone to power shell storage | false |
shellStorageMaxUnpoweredLifespan |
Ticks a shell survives without power | 20 |
energyMap |
Entity energy output for treadmills | Configurable list |
wrench |
Item used to interact with machines | minecraft:stick |
Requirements
- Minecraft 1.21.1
- NeoForge 21.1.x
Optional Compatibility
- Curios API
- Accessories
Credits
- Port by: BlueShrt
- Original Fabric mod by: Kir_Antipov
- Original concept by: iChun
Licensed under MIT license.
Available Versions
How to Install Sync Re-Forged on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Sync Re-Forged". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Sync Re-Forged server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Sync Re-Forged compatible with neoforge?
Sync Re-Forged officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Sync Re-Forged – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Sync Re-Forged consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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