FlowState GT New Horizons

Set up GTNH 2.8.4 using Prism Launcher, then join our server.

GTNH 2.8.4 client
Prism Launcher
Java 25 recommended (2.8+)
Server: gtnh.flowstategaming.wtf

Install GTNH with Prism (5–10 minutes)

Before you start:
  • You need a valid Minecraft account (Microsoft login).
  • On Windows, avoid installing Prism inside a OneDrive-synced folder.
  • You’ll download the GTNH Prism/MultiMC zip from the official downloads page.
1

Install Prism Launcher

Install Prism for your OS, launch it once, then add your Microsoft account inside Prism. Prism downloads

2

Set Java (recommended: Java 25 for GTNH 2.8+)

In Prism: Settings → Java and select a Java 25 runtime.

3

Download the GTNH 2.8.4 Prism/MultiMC zip (Java 17–25)

Go to the official downloads page and grab the Prism/MultiMC zip for 2.8.4 (Java 17–25): GTNH Downloads

4

Import the pack into Prism

In Prism: Add Instance → Import and select the zip (or drag-and-drop the zip into the Prism window).

5

Set memory + launch once

Prism lets you set Min and Max RAM. They do not have to be equal.

Recommended for most players: Min 4GB, Max 7GB.

Absolute minimum: 4GB. Our supported maximum: 32GB (don’t set higher).

Launch the instance once to finish setup, then close the game.

6

Join the FlowState server

Launch GTNH → Multiplayer → Add Server and paste the address shown on the right.

Client RAM guidance (GTNH)

GTNH docs commonly recommend ~5–7 GB for singleplayer and 4GB+ for connecting to a dedicated server.

First launch fails?

Double-check Prism is using the right Java, and that you’ve actually allocated enough Max RAM.