The Callisto Protocol
21:9
Native
32:9
Native
Gameplay Scaling
Hor+
HUD
Centered
Centered HUD
Native
Cutscenes
Ultrawide
Menus
16:9
FOV
Narrow
Black Bars
Cutscenes only
Flawless Widescreen
Not Required
Community Fix
Not needed
Online Safety
Safe
Overview
PCGamingWiki states the FOV is Hor+ and that rendering and UI scale correctly to high aspect ratios like 32:9, and Steam players confirm it works at 21:9 and 32:9 without pillarboxing. The default 75-degree FOV feels tight to some players (a few called it zoomed in), and there is no in-game FOV slider, so the ReShade FOV addon is the community option. Cutscene black bars are an in-game overlay per Steam players; menu layout and exact cutscene behaviour at 32:9 were not confirmed and are lower confidence.
Compatibility details
21:9 SupportNative
32:9 SupportNative
Gameplay ScalingHor+
HUD BehaviorCentered
Centered HUDNative
Cutscene SupportUltrawide
Menu Support16:9
FOVNarrow
Black BarsCutscenes only
StretchingNone observed
Fixes
No fix required.
The Callisto Protocol supports 32:9 correctly out of the box across every mode.
Patch history & verification
Steam current buildSep 19, 2026
Checked PCGamingWiki (ultrawide true, Hor+, UI scales at 32:9, FOV hackable), Steam discussions (works at 21:9/32:9, mixed 'zoomed in' impressions, bars are overlays) and Flawless Widescreen repo (no Callisto entry). Menu layout, cutscene bars at 32:9 and current build number not confirmed.