The "ipa" extension suggests you are looking to side-load the game onto an iPhone or iPad. Historically, projects like (available on GitHub ) allow users to compile the engine for mobile, though you must provide your own legal game data files (assets). Safety Note
This is the most popular source port for the original Doom 3. You can follow the dhewm3 Tutorial on YouTube to set it up on macOS Big Sur or later. The "ipa" extension suggests you are looking to
While a direct official download for that specific version string is not standard, you can find established ways to run Doom 3 on modern Apple hardware through source ports and community guides: How to Run Doom 3 on Apple Devices You can follow the dhewm3 Tutorial on YouTube
If you’re looking for in-game assistance, you can also find comprehensive Locker & Door codes for all versions of Doom 3 on community guides. The "ipa" extension suggests you are looking to
If you are looking to run Doom 3 on a Mac or iOS device, it is recommended to use verified source ports rather than potentially unsafe hidden files:
Use a trusted source port like Mac Source Ports to run the engine.