4 Proven Solutions to Fix DELTARUNE Constant Crashing Issues

Technical Analysis & Fixes:‌

Force DirectX 11 Mode‌

Create a shortcut for DELTARUNE.exe, then add -dx11 to the launch options to bypass Unreal Engine 4 (UE4) compatibility issues.
Rationale: Overrides default rendering API, resolving crashes tied to DX12/Vulkan instability.

Update GPU Drivers‌

Outdated drivers often conflict with UE4’s rendering pipeline. Use NVIDIA/AMD official tools or third-party software like DriverEasy to install the latest versions.
Note: Roll back drivers if updates introduce new instability.

Verify Game Files‌

Corrupted files trigger fatal errors. Validate integrity via Steam (Right-click game > Properties > Local Files).
Advanced: Reinstall DirectX/Vulkan runtimes if verification fails.

Lower In-Game Settings‌

Reduce shadow quality, disable motion blur, and cap FPS to 60 to minimize GPU/CPU overload.
Monitor: Check Task Manager for background processes consuming resources.

Additional Measures:‌

Disable overlays (Discord, Steam) to prevent interference.
For persistent crashes, check community patches or contact Toby Fox’s support team.

Pro Tip: Test fixes incrementally to isolate the root cause.