Download

Pick your cartridge.

Version 0.33.0 (what's new). Free and open source (GPL-3.0, code on GitHub). No account. Updates itself from a signed feed.

Computers

macOS

Signed and notarized by Apple.

Apple Silicon (M1 And Later)Intel Mac

.dmg

Windows

Installer, or a portable version that runs from any folder.

Download For Windows Portable .exe

.exe

Linux

A package for Debian and Ubuntu, or an AppImage for anything else.

Download .deb AppImage

.deb · .AppImage

Handhelds And Phones

Steam Deck

Install in Desktop Mode, then add it to Steam for Gaming Mode.

Download For Steam Deck

.flatpak · always the newest

Android

Phones and handhelds. Installs the Android ports in the catalog.

Download The APK

.apk

Install Help

Mac: Apple Silicon or Intel?

Almost every Mac from late 2020 on is Apple Silicon (M1, M2, M3, M4…). Not sure? Apple menu → About This Mac: "Apple M…" means Apple Silicon. This page picks the right one for you when it can tell.

Windows: "Windows protected your PC"

SmartScreen asks once because Decomp Buddy isn't code-signed yet. Press More Info, then Run Anyway. The portable .exe keeps its settings in the same folder, so it works from a USB stick.

Linux: .deb or AppImage?

On Debian or Ubuntu, open the .deb and it's in your app menu. Anywhere else, use the AppImage: mark it executable and run it (it needs libfuse2).

Steam Deck: setting it up

In Desktop Mode, download the .flatpak and double-click it: Discover installs it. Open Decomp Buddy, go to Settings and press Add Decomp Buddy To Steam. Back in Gaming Mode it's a tile that opens in Couch Mode. If something's off on your Deck, tell us.

Android: installing the APK

It's not on Google Play, because Play doesn't allow apps that install other apps. Open the file and allow installs from your browser when Android asks. It shows the games that run on Android, downloads the one you pick, checks it against our malware scan, then hands it to Android to install.

First run

Browse Games (or New Games, or Games You May Like) → press Add on the games you want → Add To Links.
Read Repos → Choose each game file from your own copy → Set Up Games. Every game in the catalog comes with its install steps already worked out, so no AI key is needed.
Open Installed Games and press Play - or copy the Transfer folder to your gaming PC.
Got a project that isn't in the catalog? Install From GitHub takes any link (that one needs your own AI key, set in Settings).

Decomp Buddy contains no game data and never downloads any. Verification only ever checks the files you already own.

Enjoying it? Decomp Buddy is free and made by one person. A star on GitHub is the easiest way to help other people find it.

Requirements

macOS 12 or later, Windows 10/11 64-bit, or a mainstream Linux distro. Steam optional; DolphinTool or chdman optional for RVZ / CHD conversion.