Coastline: Sunbeam

Name: Coastline: Sunbeam
Price: 12 EUR
Author: Thrandos

Designed to provide a lightning-fast experience, with all the building tools you'll ever need. Includes Litematica and Axiom.

by Thrandos

113 Downloads

0 Followers

fabricMC 1.21.1adventuremultiplayeroptimization

Rent Coastline: Sunbeam Server

Screenshots

About this Modpack

Coastline Sunbeam

The ultimate modpack for building, made to work seamlessly on Coastline.
Coastline Sunbeam contains everything found in Coastline Definitive, adding powerful building tools to expedite your creativitiy. Experience a fully built-in editor UI and schematic tools, fully integrated with the countless features Coastline Definitive has to offer— planes, ships, knives, and breathtaking landscapes.

Requirements

This modpack is built for version 1.21.1 and runs best on the latest version of Java. To run, it needs a launcher like Curseforge, Modrinth, or Prism.

FAQs

What's Coastline?

Coastline is a modded SMP focused on exploration and building. We're always happy to welcome new players. To get started, join our Discord server, which is linked to this page.

How does this differ from Coastline Definitive?

Coastline Sunbeam offers two main new tools for builders: Axiom and Litematica. Nothing is removed.

Check out our other versions:

Note: All resources and third-party material belong to their respective owners. Redistribution may be handled in accordance with the licenses of the original creator. All content used with permission from the initial developer.

Available Versions

Coastline: Sunbeam 1.0.0release

MC 1.21.1fabric113 downloads

June 2, 2025

How to Set Up a Coastline: Sunbeam Server

Order Server

Choose at least 6 GB RAM (8 GB recommended for Coastline: Sunbeam). Based on player count: per 5 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Coastline: Sunbeam" and click "Install". The fabric loader and Minecraft 1.21.1 are configured automatically.

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

Coastline: Sunbeam server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 8 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a Coastline: Sunbeam server really need?

Minimum 6 GB, recommended 8 GB for stable performance. per 5 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €12/month).

Can I add custom mods to Coastline: Sunbeam without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.1). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

Coastline: Sunbeam server lagging – performance tips

1) Increase RAM to 8 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.