GenZD supports running games using the open-source idTech 1 game engine for iOS, and supports running its "WAD" game files as well as community-developed "MOD" files, all rendered natively using modern technology. It supports several capabilities beyond the original engine, such as modern 3D rendering, widescreen graphics, dynamic lighting, a fully scriptable environment, and much much more.
Please note that GenZD does not include content and they must be provided by you. Please use the Files app to move or copy files to the GenZD folder under "On my iPhone" or "On my iPad".
Configurations called "Launch Configurations" can be created using a base game file as well as additional MOD files (.pk3 and .zip files). A plethora of content developed by the community is available on the web, and almost all "mods" that use the UDMF or WAD formats are supported.
Additional features:
- Game controller support: PS4, PS5, Xbox One, Nintendo Switch, mFi
- On-screen touch virtual gamepad and virtual keyboard
- Customizable touch controls: Rearrange buttons, change color and size. Support for saving multiple layouts.
- Gyroscope aiming
- Widescreen Metal graphics rendering using MoltenVK
- Add your own game and mod files via the Files app
- Accessibility: Supports VoiceOver and mods that support accessibility
- Local Multiplayer: Host a co-op or deathmatch game, discover hosts running GenZD automatically on the same network and join a game
This is everything I ever wanted. I never expected this to actually happen, thanks. I really appreciate the full controller support. But there’s a couple problems and it’s that 1, the controller camera movement is a bit jittery, and 2, there’s no underscore key, so I can’t enter commands properly, and I can’t manually bind stuff that’s not in the options menu already. Please take this into consideration and fix these if you could.
Developer Response
Thanks for your comments! The controller support should be fixed with the recent updates. The virtual keyboard is indeed in need of some love and I'll be looking to improve this later.
Touch controls need work
YuckFoo2021
The touch controls are missing some basic functionality present in most mobile FPS games. The movement joystick doesn’t snap to the location of your finger, nor does it register any input outside of one of four cardinal directions, meaning diagonal movement is impossible. The size is fixed also. The “press and swipe” motion that I’m used to for moving in other games is impossible. It’s more like four tiny buttons which are difficult to reliably press. If this could be fixed, this would be a great port. It’s still better than Bethesda’s iOS port, which they haven’t updated in years.
Fantastic App! UZDoom support
Pizzuti
I have been dying for a legit source port for doom on iOS and I’m so glad it’s finally here! Unfortunately, GZDoom has most likely become deprecated as all of its contributors have moved to a new source port called UZDoom. Is there any chance we could get support for UZDoom as it has more and better features and will likely become the premiere source port going forward. Thanks!
Great app for doom1,2 and others for mods
baczyk23
Great app if you want to do mods on your iphone and have unlimited configurations. All I do is click one I already set up and it launches and don’t have to do it mainly every single time. Just wish I could get Wolfenstein Blades of agony to launch through the app
Fixed crash when launching a game on iPadOS 26.
Version 2026.1.0
The developer, Infinite Evolution Technologies, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Yoshinobu Sugawara
Size
65.3 MB
Category
Entertainment
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Mac Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.