Compatibility Report

• Name of the game with compatibility issues: NINJA GAIDEN Σ2
• Steam AppID of the game: 1580790

System Information

• GPU: RTX 4070
• Video driver version: Nvidia 580.105.08
• Kernel version: Linux 6.14.0-35-generic (Ubuntu 24.04.02 LTS)
• Proton version: Proton Experimental (I have used other versions, including versions of GE Proton)

I confirm:

• [x] that I haven't found an existing compatibility report for this game.
• [x] that I have checked whether there are updates for my system available.

steam-1580790.log
Gist

Symptoms

Game boots and shows the Koei-Tecmo splash screen before fading to black indefinitely. I found a similar issue with the first Sigma from 4 years ago here, but they mentioned having sound, which I do not, and the fixes mentioned did nothing for me. If it's relevant, a successful boot on Windows shows art of the main character Ryu before reaching the K-T logo, and I do not see Ryu via Proton.

Reproduction

Issue happens at launch.