⚓ Eureka 2.0 [UNOFFICIAL]

Your build. Your ship. Take the helm.

Eureka adds ship assembly and helm controls to Valkyrien Skies, letting you turn your block-built designs into moving vessels.

This unofficial NeoForge 1.21.1 fork is maintained by Kiura and works with Valkyrien Skies 2.0 [UNOFFICIAL].

No Create required. Install the two mods with their required dependencies and start building.

🧭 What it does

- Assemble connected blocks into a ship.

- Control your vessel with Eureka's helms.

- Use Valkyrien Skies physics for moving structures.

- Build with the matching Valkyrien Skies fork's collision, camera, and compatibility fixes.

The matching Valkyrien Skies build also includes Carry On protection for Eureka helms, so they are excluded from pickup when the protection tag is respected.

🔧 Changes in this fork

- Removed the mandatory Create dependency.

- Updated dependencies for Valkyrien Skies 2.0 [UNOFFICIAL].

- Aligned the release with the matching physics and compatibility fixes.

- Updated project metadata and credits.

The movement and camera fixes are supplied by the matching Valkyrien Skies build. Use the two mods together.

📦 Getting started

Minecraft: 1.21.1
Loader: NeoForge 21.1.248 or later in the 21.1 series
Java: 21

Required mods:

- Valkyrien Skies 2.0 [UNOFFICIAL], fork version 1.x

- Kotlin for Forge

Install matching builds on the client and server. Keep only one Eureka JAR and one Valkyrien Skies JAR installed.

✅ Tested setup

The 1.0.0 pair was tested with Minecraft 1.21.1, NeoForge 21.1.248, Java 21, and Kotlin for Forge 5.12.0.

Tests included ship assembly, loading a saved vessel, jumping on deck while standing, sneaking, and sprinting, and connecting to a local dedicated server.

Movement checks also passed with a saved ship in a full modpack.

🔍 Compatibility notes

Ship interiors are not yet watertight. Water and aquatic plants can still appear inside the hull.

Some blocks may be left outside an assembly, and large vessels can still have visual or performance issues. These cases remain under investigation.

Carry On protection depends on its configuration respecting the helm protection tag.

Version 1.0.0 is the fork's release number. “2.0” is part of the project name.

🐛 Support

For bug reports, include both mod versions, your mod list, latest.log, and a crash report if available. Add the steps to reproduce the issue and your server software if applicable.

Report an issue
Community and support

Please report problems with this fork here, not to the official Eureka developers.

❤️ Credits

Original Eureka: triode_, rubydesic, and contributors. 

Original Source Code: Eureka GitHub.

Original Project: Eureka! Ships! for Valkyrien Skies (Forge/Fabric)

Fork maintenance and compatibility fixes: Kiura.

License: Distributed under the Apache License 2.0, matching the original mod's licensing terms.

Built on an existing unofficial NeoForge port. This project is not affiliated with or endorsed by the original Valkyrien Skies team.