ckochandClaude Opus 4.8
0833cf8495
Expedition 33 is UE5 with no DRM, but a mature MIT-licensed fix already exists: ClairObscurFix by Lyall. Rather than reimplement it, install.sh gains a third method that vendors a third-party fix unmodified and layers our own tuned config on top, with the upstream license shipped in the release zip as MIT requires. Upstream is archived, so vendoring also keeps it available. Our only change vs upstream defaults is [Center HUD] Enabled = true, since at 5120px wide the edge-anchored HUD elements end up absurdly far apart. Install/uninstall round-trip verified against a scratch game dir, including that our tuned ini overrides the vendored default. Credit to Lyall is recorded in THIRD_PARTY.md, the game README, and the repo README's method table. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Clair Obscur: Expedition 33 — UltraWide
⚠️ Awaiting first-launch verification at 5120×1440.
- Engine: Unreal Engine 5 — no DRM (no SteamStub;
.textentropy 6.74) - Steam AppID: 1903340
- Executable:
SandFall-Win64-Shipping.exe - Method:
external— vendored third-party fix + our 32:9 config
We did not write this fix
The ultrawide work here is ClairObscurFix by Lyall (MIT), vendored unmodified. It is mature and already handles the hard parts; reimplementing it would be duplicated effort for no benefit. All credit for the fix itself goes to Lyall.
What this repo adds is the 32:9 configuration verified on a Samsung 49" G93SC, packaging, and a one-command installer consistent with the other games here.
The upstream repo is archived, so it will not receive further updates. Vendoring it here means the version you need stays available.
Install (Linux / Proton)
./install.sh Expedition33
Then required — Steam → Properties → Launch Options:
WINEDLLOVERRIDES="dsound=n,b" %command%
Set 5120×1440 fullscreen in-game.
Install (Windows)
Extract the release zip into …\Expedition 33\Sandfall\Binaries\Win64\.
Our 32:9 config
ClairObscurFix.ini ships with upstream defaults except:
| Option | Upstream | Ours | Why |
|---|---|---|---|
[Center HUD] Enabled |
false |
true |
At 5120px wide, HUD elements anchored to screen edges end up absurdly far apart |
Everything else is left at upstream defaults, which are already ultrawide-friendly:
| Option | Default | Effect |
|---|---|---|
Cutscene Letterboxing |
false |
No bars in cutscenes |
Fix Movies |
true |
Crops letterboxing from pre-rendered video |
Adjust Resolution Checks |
true |
Uses the monitor's max resolution rather than "native" |
Uncap Cutscene FPS |
true |
Removes the 30fps cutscene cap |
Tuning
Edit …/Sandfall/Binaries/Win64/ClairObscurFix.ini (requires a restart — this fix has no live reload):
- HUD too cramped? Raise
[Center HUD] AspectRatiofrom1.77778(16:9) to2.33333(21:9) — usually the sweet spot at 32:9. - Prefer the HUD spanning the full width? Set
[Center HUD] Enabled = false. - Want cinematic bars back?
[Cutscene Letterboxing] Enabled = true.
Uninstall
./install.sh Expedition33 uninstall
Status / open questions
The game has an official ultrawide fix as of patch 1.2.3, so some of this may be redundant. Unverified at 32:9:
- Does it launch correctly under Proton at 5120×1440?
- Is
Center HUDat 16:9 right, or is 21:9 better? - Any remaining pillarboxing in cutscenes or pre-rendered movies?
- Is the camera FOV Hor+ (see more) or Vert- (zoomed)?
If a gap remains that ClairObscurFix doesn't cover, that is where this repo would add its own patch.