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ckochandClaude Opus 4.8 dc28d60392 Gundam Breaker 4 UltraWide Fix v1.0.0

32:9 / 21:9 ultrawide support for Gundam Breaker 4 (UE4.27) via SUWSF +
Ultimate ASI Loader. Forces Hor+ FOV (AspectRatioAxisConstraint=MaintainYFOV)
and disables pillarboxing, patched in decrypted memory at runtime so it holds
through missions (the exe is SteamStub-encrypted; a static patch is impossible).

Confirmed working in gameplay at 5120x1440 (Samsung Odyssey G93SC) on Proton.
Requires WINEDLLOVERRIDES="dsound=n,b" on Proton so the loader injects.

Includes: patch/SUWSF.ini, Proton installer with clean uninstall, release-zip
builder, and runtime dump/verify tooling. Third-party bundles under MIT (see
THIRD_PARTY.md).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-20 20:21:23 -04:00

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Gundam Breaker 4 — UltraWide Fix v1.0.0

Native-feeling 32:9 / 21:9 ultrawide support for Gundam Breaker 4 (PC). Forces Hor+ FOV (you see more, the camera doesn't zoom in) and disables pillarboxing. Confirmed working in gameplay at 5120×1440 on Linux/Proton (Samsung 49" Odyssey G93SC).

Install (Linux / Proton)

Extract GB4_UltraWide_Fix.zip into …/GB4/Binaries/Win64/ (next to GB4-Win64-Shipping.exe), or run ./install.sh from the repo.
Required: add to GB4's Steam → Properties → Launch Options:
```
WINEDLLOVERRIDES="dsound=n,b" %command%
```
Without this, Proton ignores the loader and the fix only works in the lobby.
Set the in-game resolution to your display's native ultrawide res, fullscreen.

Install (Windows)

Extract GB4_UltraWide_Fix.zip into …\GB4\Binaries\Win64\. No launch option needed.

How it works

GB4 is Unreal Engine 4.27 and its shipping exe is SteamStub-encrypted, so a static exe patch isn't possible. This uses SUWSF + Ultimate ASI Loader to patch the decrypted UE4 AspectRatioAxisConstraint in memory at runtime — which is why it holds through missions (the Engine.ini trick alone reverts in-mission).

Notes

Do not use the HOR+ patch at 16:9 or narrower.
You must own the game. This does not modify or circumvent any game copy protection.
Uninstall: delete SUWSF.asi, SUWSF.ini, dsound.dll from Binaries/Win64 (or ./install.sh uninstall).

Checksum (GB4_UltraWide_Fix.zip): c1df7e963003f6b5c0583104908be0430e2b2ae1c5087c014ecf14c06b1cc7d3

Credits: SUWSF by PhantomGamers · Ultimate ASI Loader by ThirteenAG · patterns adapted from Lyall's UltrawidePatches.