Killing Floor 3
21:9
Fix Required
32:9
Fix Required
Gameplay Scaling
Vert-
HUD
Centered
Centered HUD
Native
Cutscenes
16:9 pillarboxed
Menus
16:9
FOV
Narrow
Black Bars
Menus and cutscenes
Flawless Widescreen
Not Supported
Community Fix
Available
Online Safety
Safe
Overview
Killing Floor 3 is vert- by default and its in-game resolution list caps out at 2560x1440, so both 21:9 and 32:9 require manually editing GameUserSettings.ini to force a wider resolution plus enabling the 'FOV Scaling Axis' option; done wrong this can produce a fisheye effect since that toggle expands FOV on both axes. Cutscenes and menus are conservatively assumed pillarboxed/16:9 since no source confirms otherwise, and this remains an acknowledged, unresolved gap per ongoing Steam Community threads.
Compatibility details
21:9 SupportFix Required
32:9 SupportFix Required
Gameplay ScalingVert-
HUD BehaviorCentered
Centered HUDNative
Cutscene Support16:9 pillarboxed
Menu Support16:9
FOVNarrow
Black BarsMenus and cutscenes
StretchingUI only
Fixes
Recommended fix
GameUserSettings.ini manual resolution edit + FOV Scaling Axis toggle
UltraWideCheck links to third-party mods and tools but does not host or distribute mod files.
Patch history & verification
Post-launch buildSep 22, 2026
Confirmed via PCGamingWiki that the game is vert- with a max in-game-selectable resolution of 2560x1440, and confirmed via active Steam Community threads that the ini-edit + FOV Scaling Axis workaround is the current community-standard fix for 21:9/32:9. Could not confirm exact cutscene/menu framing from any source, so those fields are set conservatively.