S&box – How to Get Developer Mode (Running on Linux)

A quick guide on how to access the developer mode on Linux. Tested on Ubuntu 22.10.

Guide to Get Developer Mode

How-To (Step by Step Guide)

• Prerequesite: if not already done, set up flatpak.
• Install protontricks via flatpak with

flatpak install flathub com.github.Matoking.protontricks

• Install a directx dependency with

flatpak run --branch=stable com.github.Matoking.protontricks 590830 d3dcompiler_47

• Run sbox-dev.exe with

flatpak run --branch=stable com.github.Matoking.protontricks --no-runtime --no-bwrap -c "wine sbox-dev.exe" 590830

• S&box dev mode should start and stay open until you close it or crashes as it so usually does on Linux.
• After closing, should Steam still display s&box as running, you have to exit out of steam completely to stop it.