Skip to main content

sm64coopdx Guide

This build is for Xbox Series consoles in Dev Mode.

1. Get the right ROM​

You need a vanilla US Super Mario 64 ROM named:

baserom.us.z64

Expected MD5:

20b854b239203baf6c961b850a4a51a2

If the ROM name or hash does not match, the game will not load properly.

2. Choose where to put the ROM​

You have two supported options:

  • LocalState
  • E:\sm64coopdx

Option A: LocalState​

Use the Xbox Dev Portal file explorer and upload:

baserom.us.z64

into the app's LocalState folder.

Option B: E drive​

Create this folder on the Xbox drive:

E:\sm64coopdx

and place the ROM here:

E:\sm64coopdx\baserom.us.z64

3. First launch​

On first boot, the game will set up its working folders automatically.

That includes folders like:

  • mods
  • dynos
  • sav
  • palettes
  • lang

Please do not manually add extra files before the first launch apart from the ROM itself.

The game needs that first boot to finish its own setup cleanly.

4. Active storage path​

Wherever the ROM is found becomes the active root path for the game.

So if the ROM is in:

  • LocalState
    then saves, config, mods, DynOS content, and user files will live in LocalState

  • E:\sm64coopdx
    then saves, config, mods, DynOS content, and user files will live in E:\sm64coopdx

5. After first launch​

Once the game has booted successfully once, you can then add extra content such as:

  • mods
  • DynOS packs
  • palettes
  • language files

Add them to the same active root path the game is using.

6. Current status​

  • CoopNet works
  • Public lobbies work
  • Mods work

If the game does not detect the ROM, the first thing to check is:

  • filename is exactly baserom.us.z64
  • ROM hash is exactly 20b854b239203baf6c961b850a4a51a2

Contributor: MewLew