Prism Launcher Modpacks & Mod Downloader

Download and update modpacks from Modrinth, CurseForge, FTB, Technic, and ATLauncher directly inside Prism Launcher on Windows.

Section

Modpacks

Platform

Windows 10 & Windows 11 (x64 / ARM64)

Mod Platforms

Modrinth, CurseForge, FTB, Technic, ATLauncher

Installer

Available at /download

How Prism Launcher Modpacks & Mod Downloader works on Windows

Download and update modpacks from Modrinth, CurseForge, FTB, Technic, and ATLauncher directly inside Prism Launcher on Windows. One-click `.mrpack` and CurseForge ZIP installation with automatic dependency resolution and blocked-mod file detection.

Prism Launcher is a fast, lightweight C++/Qt launcher that keeps every Minecraft profile in its own isolated instance folder, with zero ads and no background bloatware.

Get the Windows installer or portable ZIP from /download, or dive into the guides linked below.

Key advantages for modded Minecraft

• **One-Click Mod Loaders:** Switch between Fabric, NeoForge, Forge, and Quilt inside any instance's Version tab.
• **Built-in Mod & Modpack Browser:** Search and update Modrinth and CurseForge modpacks, shaders, and resource packs directly inside the app.
• **Automatic Java Management:** Pair Java 21, Java 17, and Java 8 per instance so modern 1.21 packs and classic 1.12.2 packs both launch cleanly.

Pages in Prism Launcher Modpacks & Mod Downloader

• Fabulously Optimized on Prism Launcher — Flagship Fabric performance and OptiFine-parity modpack offering massive FPS gains, shaders, connected textures, and controller support. Runs on Fabric (1.16.5 – 1.21.4) with 2 GB – 4 GB RAM and Java 21 (for 1.20.5+).
• Fabulously Optimized: FPS & Crash Fix Guide — Memory tuning (2 GB – 4 GB), Java 21 (for 1.20.5+) setup, and crash troubleshooting for Fabulously Optimized in Prism Launcher.
• All the Mods 10 (ATM10) & ATM9 on Prism Launcher — Kitchen-sink tech, magic, and exploration progression pack featuring 400+ mods and custom endgame ATM Star crafting. Runs on NeoForge (1.21.1) / Forge (1.20.1) with 8 GB – 10 GB (8192 MB) RAM and Java 21 (ATM10) / Java 17 (ATM9).
• All the Mods 10 (ATM10) & ATM9: FPS & Crash Fix Guide — Memory tuning (8 GB – 10 GB (8192 MB)), Java 21 (ATM10) / Java 17 (ATM9) setup, and crash troubleshooting for All the Mods 10 (ATM10) & ATM9 in Prism Launcher.
• Cobblemon Official Modpack on Prism Launcher — Open-source creature-catching modpack blending seamlessly into vanilla Minecraft biomes with custom animations and competitive battles. Runs on Fabric or NeoForge (1.20.1 / 1.21.1) with 4 GB – 6 GB RAM and Java 17 or Java 21.
• Cobblemon Official Modpack: FPS & Crash Fix Guide — Memory tuning (4 GB – 6 GB), Java 17 or Java 21 setup, and crash troubleshooting for Cobblemon Official Modpack in Prism Launcher.
• Prominence II RPG on Prism Launcher — Story-driven combat and talent-tree RPG modpack with custom bosses, dimensions, and multiplayer party scaling. Runs on Fabric (1.20.1) with 6 GB – 8 GB RAM and Java 17.
• Prominence II RPG: FPS & Crash Fix Guide — Memory tuning (6 GB – 8 GB), Java 17 setup, and crash troubleshooting for Prominence II RPG in Prism Launcher.
• RLCraft & RLCraft Dregora on Prism Launcher — Notoriously challenging survival overhaul on Minecraft 1.12.2 requiring 64-bit Java 8 and tuned heap allocation. Runs on Forge (1.12.2) with 6 GB – 8 GB RAM and Java 8 (64-bit Temurin 1.8.0).
• RLCraft & RLCraft Dregora: FPS & Crash Fix Guide — Memory tuning (6 GB – 8 GB), Java 8 (64-bit Temurin 1.8.0) setup, and crash troubleshooting for RLCraft & RLCraft Dregora in Prism Launcher.
• Better MC (BMC4 / BMC5) on Prism Launcher — 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.
• Better MC (BMC4 / BMC5): FPS & Crash Fix Guide — Memory tuning (6 GB – 8 GB), Java 17 or Java 21 setup, and crash troubleshooting for Better MC (BMC4 / BMC5) in Prism Launcher.
• Create Modpacks (Create: Perfect World / Ultimate Selection) on Prism Launcher — Rotational-power engineering packs centered around kinetic contraptions, trains, and automated factories. Runs on Forge / Fabric (1.20.1) with 5 GB – 8 GB RAM and Java 17.
• Create Modpacks (Create: Perfect World / Ultimate Selection): FPS & Crash Fix Guide — Memory tuning (5 GB – 8 GB), Java 17 setup, and crash troubleshooting for Create Modpacks (Create: Perfect World / Ultimate Selection) in Prism Launcher.