Flashback Neoforge Fixed
Compatibility fixes for running Flashback on NeoForge 1.21.1 through Sinytra Connector.
- Loaders
- NeoForge
- Downloads on Modrinth
- 15K
- Followers on Modrinth
- 6
- versions
- 16
- Updated
- October 17, 2026Oct 17
- Published
- in 2026
At a glance
Install in the game only; not needed on the server
Flashback Neoforge Fixed
Compatibility fixes for running Flashback on NeoForge 1.21.1 through Sinytra Connector. The mod preserves modded packets and replay snapshot state, with additional compatibility for Create, Sable-based sub-levels, Create: Aeronautics, Voxy, and several rendering integrations.
Requirements
- Minecraft 1.21.1
- NeoForge 21.1 or newer
- Sinytra Connector
- Forgified Fabric API
- Flashback 0.39 or newer
Sable, Create, Voxy, and the other supported integrations are optional.
Compatibility
Create: Aeronautics sub-level recording and riding state
Create trains and elevators
Voxy replay storage and distant terrain rendering
License
This project is available under the MIT License.
Gallery equipment shown in project images includes v2-survival-friendly-airship and cogrider-car.
FAQ
How to install Flashback Neoforge Fixed?
Install NeoForge for your Minecraft version, download Flashback Neoforge Fixed for the same version and loader, put the file into the mods folder and launch the game with the loader profile.
Which Minecraft versions does Flashback Neoforge Fixed support?
Flashback Neoforge Fixed has builds for Minecraft 1.21.1.
Is Flashback Neoforge Fixed needed on the server?
Client only — no need to install it on the server
