GenZD Zero2026.9.1 - App Store

GenZD Zero 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 Zero 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.

GenZD Zero supports any "WAD"s and "mods", but is limited to 3 launch configurations and supports one touch configuration layout. Upgrading to the full version will unlock unlimited launch configurations and custom touch control layouts.
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

Version History Updated core to 5.0.3 2026.9.1 Oct 5 Fixed crash when launching a game for iPadOS 26. 2026.1.0 Jan 19 - Updated core to 4.14.2
- Updated for iOS 26 2025.10.0 09/29/2025 Fixed the issue of downloading the WireGuard configuration file. 2025.5.1 05/30/2025 Support for online multiplayer. Requires the use of the WireGuard app to connect to the private multiplayer network.

Updated the on-screen keyboard to be larger to make it easier to type on. 2025.5.0 05/28/2025 Support for Game Mode. 2025.3.0 04/03/2025 Updated GZDoom to 4.14.1 2025.2.4 03/08/2025 Sort External Files/Mods by Name or Date: I noticed that if you have a lot of mod files, sometimes you just want the mods you just downloaded to appear at the top. So I added a "sort by name/date" button to do just this. Tap the circle with the ellipsis (...) button to show the sorting options. Your last chosen sorting option is saved. 2025.2.3 02/27/2025 - Categorize Mod Files: You can now organize your mod files by assigning a category to them. To assign a category, long-tap the mod file to open a context menu to select a category, or you can bulk assign selected entries by using the "Categorize" button after selecting files.

- Option to reset category assignments: The options screen has an option to reset the category assignments if you want to start over. 2025.2.2 02/17/2025 New option: "Enable aiming and dragging with touch buttons". This has been the default behavior of the app, but you can now disable it if you want to use two fingers to aim and fire using the touch controls. 2025.2.1 02/09/2025 Now supports playing your own audio (music, podcasts, etc) while you are playing a game.

There's a new Audio option in the GenZD settings menu called "Play other audio sources", and the default options is "on". You can turn it off to only hear audio for GenZD. 2025.2.0 02/03/2025 Some small bug fixes:

- Fixed the issue where the Profiles button does not show the popover menu after tapping on it for some iPads.
- Fixed the appearance of the buttons in the Save Launch Configuration screen.
- Highlight the launch configuration after adding or editing one. 2024.9.8 10/15/2024 2024.9.7 10/07/2024