FlatOut 2 Mods

Runtime mods for FlatOut 2, tested on the Steam version.

Fully vibecoded, rigorously tested.

Mods

• fo2_zpatch_reimpl: widescreen/FOV fixes, intro skip, FPS unlock, frame pacing fix, v-sync removal, borderless windowed mode.
• fo2_xinput_rumble: XInput controller rumble with directional feedback and gameplay-event rumble.
• fo2_skip_track: music track skip from keyboard or controller.

Install

Download the release zip for the mod you want, then extract it into the FlatOut 2 folder next to FlatOut2.exe.

ASI-based mods include winmm.dll, the known-good Ultimate ASI Loader build used for this game:

• SHA-256: 9A2BB218AB014FA4AD56104108C26AE48BF3E22595C126CD4F41367C799DA722
• File version: 1.0.0.0
• Description: Ultimate ASI Loader

Avoid dxwrapper.dll with these mods unless you specifically need it. It can make frame pacing worse.

fo2_zpatch_reimpl

Source: modules\zpatch_reimpl

Install files:

• fo2_zpatch_reimpl.asi
• fo2_zpatch_reimpl.ini
• winmm.dll

Default fixes:

SkipIntro=1
UncapFPS=1
FramePacingFix=1
RemoveVSync=1
BorderlessWindowed=0
WidescreenFix=1
WidescreenFix_FOVScaling=1

Feature notes:

• SkipIntro bypasses the startup intro videos.
• UncapFPS unlocks rendering while keeping the original game timing interval intact.
• FramePacingFix improves the stock frame gate by removing the old Sleep(1) yield that can cause uneven pacing on modern Windows.
• RemoveVSync requests immediate D3D9 presentation.
• BorderlessWindowed is available but disabled by default.
• WidescreenFix and WidescreenFix_FOVScaling fix ultrawide/widescreen menu, garage, and race camera behavior.

fo2_xinput_rumble

Source: modules\xinput_rumble

Install files:

• dinput8.dll
• fo2_xinput_rumble.ini

This is a DirectInput 8 proxy that forwards the game's normal input calls and adds XInput rumble for modern controllers.

It supports:

• player damage rumble
• player contact/collision rumble
• car-to-car impact rumble
• object/rubble contact rumble
• scrape/wall-hug rumble
• rough landing feedback
• directional rumble bias, so left/right impacts can favor the corresponding motor
• configurable strength, duration, cooldown, envelopes, and synthetic button-test rumble

The default config is tuned for an Xbox-style controller on controller index 0.

fo2_skip_track

Source: modules\skip_track

Install files:

• fo2_skip_track.asi
• fo2_skip_track.ini
• winmm.dll

Default controls:

hotkey_vk=78
controller_buttons=LEFT_SHOULDER

78 is the Windows virtual-key code for N.

The mod hooks FlatOut 2 music playback routines and requests a new track selection when triggered, thus skipping current track.

Build

Requirements:

• Windows
• PowerShell
• Visual Studio 2022 C++ build tools with the x86 toolchain

Build all mods:

powershell -ExecutionPolicy Bypass -File .\build.ps1

The top-level build creates dist\ with all runtime files:

• winmm.dll
• fo2_zpatch_reimpl.asi
• fo2_zpatch_reimpl.ini
• dinput8.dll
• fo2_xinput_rumble.ini
• fo2_skip_track.asi
• fo2_skip_track.ini

Install the built files to the default Steam path:

powershell -ExecutionPolicy Bypass -File .\install.ps1

Each module also has its own build.ps1 for building only that mod.