📚 The docs are live. The user manual → covers every screen and setting, and the extension docs → show you how to add a store we haven't.
Building an extension is simpler than it sounds, and the easiest route needs no code at all.

Junk Store Tutorials

Badge Guide:
Decky Decky Plugin only
Pro Pro Version only
Universal Same for both versions
Version Specific Different answer per version

Installation Guides

Getting Started with Junk Store Pro

Quick start guide for Junk Store Pro - get up and running fast

Pro Version

Install Junk Store Pro with the Installer

The quick route: one file does the whole job

Pro Version

Install Junk Store Pro Manually

The manual route, for when you would rather do it yourself

Pro Version

Install Junk Store Decky Plugin

Step-by-step guide to install Junk Store on your Steam Deck

Decky Plugin

GOG Extension Install Guide

Step-by-step guide on downloading and installing the GOG Extension

Decky Plugin

Configuration & Setup

Clear Out Orphaned Game Files

Clear the prefixes and shader cache left behind by games you uninstalled

Pro Version

Switch to the New Clients

Move a store off the legacy flatpak clients onto ours

Pro Version

Fix the NIL Path Error

When the usual fixes don't shift a NIL path error, set the paths by hand

Pro Version

Import Games Over the Network

Copy a game from another device over your local network instead of re-downloading

Pro Version

Change Game Language

Pick a language per game in its Installation settings

Pro Version

Install Game Dependencies

Toggle the runtimes and libraries a game needs in its Installation settings

Pro Version

Enable LSFG Frame Generation

Step-by-step guide on how to enable LSFG frame generation

Universal

How to Login using OAuth

Step-by-step guide on logging in via third party logins

Universal

How to Check/Change Proton Version

Step-by-step guide on how to check and change your Proton version

Universal

Play Ubisoft Connect Games

Install Ubisoft Connect and launch Ubisoft games through Epic Games Store

Universal

Install C++ Runtime (Decky)

Install the Visual C++ redistributable by hand in the Decky plugin

Decky Plugin

Change Game Language (Decky)

Set language environment variables per game in the Decky plugin

Decky Plugin

Quick Tips & Tricks

Steam Deck Storage Full? Don't Reformat, Clear Out Your Non-Steam Files Instead

That giant NON-STEAM number in your storage settings isn't all rubbish. Here's what's really in i...

4 min read Pro Version

Steam Deck Game Won't Launch? What a NIL Path Error Means

The game installs fine, then refuses to start. A NIL path error looks alarming, but it comes down...

2 min read Pro Version

Junk Store Pro Quick Access Shortcuts: File Browser, Diagnostics & More on Steam Deck

Hold SELECT on any screen to access Junk Store Pro's power tools - File Browser, Diagnostics, Sys...

1 min read Pro Version

A Proper Tour of Our Junk Store Tested Game Pages

A top-to-bottom tour of our Junk Store tested game pages - every section explained, from Steam De...

7 min read Universal

Every Tested Game Now Has Its Own Page

Big changes on the games tested table. Those little pop-ups are gone - every game we've tested no...

2 min read Universal

Import Games Over Your Local Network with Junk Store Pro

Already have a game installed on another device? Junk Store Pro can copy it straight across your ...

2 min read Pro Version

How to Run Expansion Packs & Alternate EXEs on Steam Deck (Epic, GOG, Amazon & itch)

Run expansion packs, bypass game launchers, or select different executables for Epic and GOG game...

2 min read Universal

How to Install EasyAntiCheat & BattlEye on Steam Deck for Epic Games

Easily download Easy Anti-Cheat and BattlEye dependencies with simple toggles in Junk Store. Get ...

1 min read Universal

How to Play Epic Games Offline on Steam Deck

Enable offline mode for your Epic games so you can play without an internet connection.

2 min read Universal

How to Change Proton Version on Steam Deck (Epic, GOG, Amazon & itch)

Change Proton versions directly in Game Mode using Steam's built-in compatibility menu.

1 min read Universal

How to Update, Repair & Verify Games on Steam Deck (Epic, GOG, Amazon & itch)

Keep your games up to date, add new DLC, and fix corrupted files - all from Game Mode without eve...

2 min read Universal

How to Filter Installed Games on Steam Deck (Epic, GOG, Amazon & itch)

Large game library cluttering your view? Press X to toggle between showing only installed games a...

1 min read Universal

See all 17 tips →