Can Steam Deck run Ace Combat 8 at 60 FPS?

Yes! With Medium graphics settings, FSR 3.1 set to Quality, and Volumetric Clouds set to Medium, Ace Combat 8 achieves a stable 60 FPS on both Steam Deck LCD and OLED models.

How do I fix Ace Combat 8 crashing on launch or mission start?

To fix crashing: 1) Switch to Proton Experimental or GE-Proton 9-10 in Steam Compatibility settings, 2) Add launch option -dx11 to bypass DirectX 12 shader compiler crashes, and 3) Verify game file integrity on Steam.

Home / Steam Deck & Crashing Fix Guide

QUICK ANSWER // 60 FPS CONFIG

Ace Combat 8 Steam Deck Best Settings & Crashing Fix

For a locked 60 FPS experience with 3+ hours battery life: Use FSR 3 Quality, set Volumetric Clouds to Medium, and run on Proton Experimental. If experiencing crash-on-launch, add launch parameter -dx11 in Steam properties.

⚙️ Recommended In-Game Graphic Preset for Handhelds

Graphics Option	Recommended Value	Performance Impact	Visual Fidelity
Resolution	1280 x 800 (Native Deck)	Baseline	100% Crisp UI
Upscaling Technology	AMD FSR 3.1 (Quality)	+22% FPS Boost	Near-Native Sharpness
Volumetric Clouds (TrueSky)	Medium	+15% FPS Boost	High Cloud Density
Shadow Quality	Medium	+8% FPS Boost	Soft Dynamic Shadows
Post-Processing & Bloom	High	Minimal (-2 FPS)	Full Afterburner Glow
Anti-Aliasing	TAA High	Low (-3 FPS)	Smooth Wing Edges
SteamOS Refresh / Framerate	60 Hz / 60 FPS Cap	Smooth Pacing	TDP Set to 11W

🛠️ How to Fix Ace Combat 8 PC & Steam Deck Crashing

FIX 01

Bypass DirectX 12 Crash

Unreal Engine 5 shader compilation occasionally panics on older GPU drivers and Proton. Right-click Ace Combat 8 in Steam -> Properties -> General -> In Launch Options, paste:

            -dx11 -useallavailablecores
          

FIX 02

Update Proton to GE-Proton 9

If the game freezes during Mission 04 cutscenes: Open Steam Deck Settings -> Compatibility -> Force the use of Proton Experimental or install GE-Proton 9-10 via ProtonUp-Qt.

FIX 03

Clear Corrupt Shader Cache

Navigate to ~/.steam/steam/steamapps/shadercache/2288340/ on Linux or delete the %LOCALAPPDATA%\BandaiNamcoAces\AceCombat8\Saved\ cache folder on Windows.