INSIDE
21:9
Fix Required
32:9
Fix Required
Gameplay Scaling
Fixed FOV crop
HUD
Centered
Centered HUD
Native
Cutscenes
16:9 pillarboxed
Menus
16:9
FOV
Correct
Black Bars
Full-time
Flawless Widescreen
Not Supported
Community Fix
Available
Online Safety
Safe
Overview
INSIDE is pillarboxed to 16:9 on ultrawide screens by default. A hex edit of INSIDE.exe (documented by WSGF and PCGamingWiki) or the Luma mod unlocks true Hor+ ultrawide; Luma also fixes chapter select and credits UI and adds an aspect ratio slider. The game has virtually no HUD.
Compatibility details
21:9 SupportFix Required
32:9 SupportFix Required
Gameplay ScalingFixed FOV crop
HUD BehaviorCentered
Centered HUDNative
Cutscene Support16:9 pillarboxed
Menu Support16:9
FOVCorrect
Black BarsFull-time
StretchingNone observed
Fixes
Recommended fix
Luma INSIDE (ultrawide + HDR)
UltraWideCheck links to third-party mods and tools but does not host or distribute mod files.
Already have one of these? It works too
Hex edit INSIDE.exe aspect ratio (398EE33F)Replace 398EE33F with 8EE31840 (3440x1440) or 26B41740 (2560x1080); ending credits slightly cut off.
Learn more
Patch history & verification
Current Steam build (number not confirmed)Sep 28, 2026
WSGF (updated Aug 2025): pillarboxed by default, Hor+ via hex edit, credits slightly cut off. PCGW rates ultrawide hackable and points to Luma; Luma mods list confirms ultrawide support (not Xbox Store). No FWS module. Side-scroller with no FOV option.