This project aims to implement all the functionality of the 1995 game Whiplash/Fatal Racing in a way that builds and runs on modern PCs. Where necessary, DOS-specific functions are substituted with SDL and Windows/Unix equivalents. For instruction-matching decomp, see https://github.com/FatalDecomp/ROLLER-matching

Assets from a retail copy of the game are required to run. Drop the contents of the build archive into the Whiplash/Fatal Racing install directory. ROLLER.exe should be in the same directory as WHIP.EXE/FATAL.EXE.

Debug symbol dump generated with wdump, part of: https://github.com/open-watcom/open-watcom-v2

Useful tool in generating nice asm output with symbols from wdump applied: https://github.com/fonic/wcdatool

Directions on how to use wcdatool and get remote debugging working with open watcom: https://www.youtube.com/watch?v=bG9tEZOSrQg

Note: wdump symbol offsets do not account for DOS4GW.EXE. Load FATAL.EXE_split_dos4g_payload.exe (FATAL.EXE with DOS4GW.EXE split off, generated by wcdatool) into Ida/Ghidra to have matching symbol offsets.

Hashes of executables used for decomp:

FATAL.EXE

• md5: 812EEE1404ECDFD87FF765281DF89720
• SHA256: 7789768C0A6CDC213EAF7B1AD8CC125531EB3FE7C213ECCAC6188E58F428687E

FATAL.EXE_split_dos4g_payload.exe

• md5: 05C2B0730641663133D76DD2CA552B4C
• SHA256: A4AD4131DBBFF9884DA4687D8B579B81117E6D23525950D942DF2DF585E2A11E

• SDL3.2.14: https://github.com/libsdl-org/SDL
• SDL_Image3.2.4: https://github.com/libsdl-org/SDL_image
• WildMIDI 0.4.6: https://github.com/Mindwerks/wildmidi

1. Clone repository
2. Open ROLLER.sln
3. Build project

git clone https://github.com/zizin13/roller.git
cd roller
make

• SDL3
• SDL3_Image
• WildMIDI

git clone https://github.com/zizin13/roller.git
cd roller

• Zig 0.14.1

The easiest way to install is to use mise:

mise install

Using default settings

zig build run

A custom data folder

zig build -Dassets-path=/path/to/fatdata run

There is basic support for Visual Studio 2022 using ZigVS