Prism Launcher Modpacks & Mod Downloader
Download and update modpacks from Modrinth, CurseForge, FTB, Technic, and ATLauncher directly inside Prism Launcher on Windows.
Better MC (BMC4 / BMC5) on Prism Launcher
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Vanilla-plus adventure overhaul adding dozens of new biomes, dungeons, dragons, and quality-of-life dimensions. Runs on Fabric / Forge / NeoForge with 6 GB – 8 GB RAM and Java 17 or Java 21.
- Modpack
- Better MC (BMC4 / BMC5)
- Source Platform
- CurseForge & Modrinth
- Mod Loader
- Fabric / Forge / NeoForge
- Recommended RAM
- 6 GB – 8 GB
- Java Requirement
- Java 17 or Java 21
How to install Better MC (BMC4 / BMC5) in Prism Launcher
Vanilla-plus adventure overhaul adding dozens of new biomes, dungeons, dragons, and quality-of-life dimensions.
Click **Add Instance** on the Prism Launcher toolbar, choose **CurseForge** on the left sidebar, search for **Better MC (BMC4 / BMC5)**, and click **OK**. Prism downloads the manifest and all mod JARs into an isolated instance folder.
Recommended Java and memory settings on Windows
- **Java runtime:** Java 17 or Java 21. Configure this under Java Settings so the pack does not fail the startup compatibility check.
- **Memory allocation:** Set Maximum Memory (`-Xmx`) to **6 GB – 8 GB** under Edit Instance → Settings → Memory.
- **Need the app?** Grab the Windows installer or portable build from /download.
Frequently asked questions
What if CurseForge blocks a few mods while installing Better MC (BMC4 / BMC5)?
Prism Launcher opens the download pages for any blocked mods and watches your Windows `Downloads` folder automatically — click Download in your browser and Prism moves the files into place.
How much RAM does Better MC (BMC4 / BMC5) need?
Allocate 6 GB – 8 GB under Edit Instance → Settings → Memory, and ensure you are running 64-bit Java 17 or Java 21.
Get Prism Launcher
Windows, macOS & Linux
Free and open source. Sign in with the Microsoft account that owns Minecraft, then create your first instance.
