Coastline

Coastline

Coastline is a collection of mods designed to improve exploration. Craft planes, sail ships, rest in hammocks, and more.

by Thrandos
213 Downloads
0 Followers
fabricMC 1.21.1adventuremultiplayertechnology

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About this Modpack

Coastline

curseforge
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The ultimate modpack for exploration, made to work seamlessly on the Coastline server.
Coastline contains everything you'll need to travel great distances, conquer structures, and build a unique world around you, enjoying a whole new take on the Minecraft experience.

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 server with a wide variety of games, SMPs, and activities to enjoy. We're always happy to welcome new players. To get started, join our Discord, which is linked to this page.
What's included in this modpack? Notable mods include Xaero's Minimap, Small Ships, Immersive Aircraft, and Ewewukek's Musket Mod. This pack also contains a number of performance and shader mods to improve everyone's experience, regardless of system specs.

Check out our plugins* for Coastline:

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*Different from Minecraft's plugins. Designed to add onto the standard modpack.

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.

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Available Versions

Coastline 1.3.1release
MC 1.21.1fabric66 downloads
September 7, 2025
Coastline 1.3.0release
MC 1.21.1fabric30 downloads
August 24, 2025
Coastline: Definitive 1.2.0release
MC 1.21.1fabric48 downloads
August 9, 2025
Coastline: Definitive 1.0.1release
MC 1.21.1fabric31 downloads
June 6, 2025

How to Set Up a Coastline Server

1

Order Server

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

2

Install Modpack in Dashboard

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

3

Start Server & Play

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

Frequently Asked Questions

Coastline 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 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 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 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.

Rent Coastline Server

Start your own server with automatic modpack installation.

Recommended RAM:
8 GB(min. 6 GB)
From 12.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
GNU General Public License v3.0 only
Server-side
Unsupported
Client-side
Required

Supported Versions

1.21.1

Start your Coastline Server now

From €12.00/month with 8 GB RAM for the best performance.

Configure Server →