🎮 Steam Deck Optimized (Fabric)

A lightweight Fabric modpack built specifically for the Steam Deck. Designed to deliver high FPS, full controller integration, sleek visuals with light shaders, and essential Quality-of-Life mods without killing your battery.

Features

• Vulkan Engine (VulkanMod) – Uses Vulkan instead of OpenGL for massive performance gains on Steam Deck hardware.
• Native Deck Controls (Controlify) – Full controller support with native Steam Deck button glyphs and analog control.
• Minimal Built-in Shaders (Beryl) – Subtle lighting, dynamic shadows, and clean visuals with minimal performance hit.
• Overhauled World Gen (Terralith) – Beautiful vanilla-style terrain and biomes.
• Dynamic Audio (Sound Physics Remastered + AmbientSounds) – Realistic cave acoustics, echoes, and background ambience.
• QoL Essentials – Dynamic lighting, 3D skin layers, AppleSkin, Jade, JEI, Xaero's World Map, Zoomify, and more.

Performance (Steam Deck LCD 256GB)

• FPS: 70 – 100 FPS average (after ~5 minutes of chunk generation).
• Frametimes: Rock solid frametimes thanks to Lithium, C2ME, and ScalableLux.
• Battery: Optimized for low power usage compared to traditional Iris/OptiFine setups.

Mod List

Performance & Rendering

• VulkanMod & Vulkan Border Fix – Vulkan rendering backend for SteamOS.
• Beryl – Light shader support under Vulkan.
• C2ME – Multithreaded chunk loading.
• Lithium & BadOptimizations – Core game logic and server-side optimizations.
• Entity Culling & Clumps – Hides unseen entities and groups XP orbs.
• FerriteCore – Reduces RAM usage.
• ScalableLux & Noisium – Fast lighting and terrain calculations.
• Dynamic FPS – Reduces resource usage when unfocused.

Controls & UI

• Controlify – Deck controller integration & keybindings.
• Mod Menu, Cloth Config & YACL – In-game settings menus.
• BetterF3 – Cleaner debug screen.
• Jade & JEI – Item recipes and block info overlay.
• AppleSkin, Chat Heads & Blur – Food stats, player head icons, and menu blur.

Visuals, Sound & World

• Terralith – Custom world generation without adding new blocks.
• Sound Physics Remastered & AmbientSounds – Reverb, acoustics, and environmental audio.
• Continuity, Visuality & 3D Skin Layers – Connected textures, subtle particle effects, and 3D skins.
• LambDynamicLights – Handheld light sources (torches, lanterns).
• Xaero's World Map – Fast and clean world map.
• Zoomify – Smooth zoom key.

How to Install

Since the modrinth launcher has a few issues on SteamOS, i reccomend using Prism Launcher:

• Switch to desktop mode
• install prism launcher via Discover (the build in app store)
• Import the .mrpack
• create a shortcut for the mincraft installation

Make sure the shortuct program is flatpack and The arguments are "run" "org.prismlauncher.PrismLauncher" "--launch "YOUR_INSTALLATION NAME""

• Import the .desktop shortcut into steam
• Launch the game

Recommended Settings

The Modpack comes with preset settings for better performance. Feel free to change them