Adventure

Grand Theft Auto IV

A GTA IV port built on LibertyRecomp and ReXGlue.

Credits

Theft4 creator screenshot.

Grand Theft Auto IV game imagery remains copyright its respective rights holders. Screenshot published by KoreanSeats1 / Theft4.

Source & attribution ↗View image ↗

About this version

Theft4 documents platform-specific setup and native rendering work. Its repository credits the upstream recompilation and distinguishes direct rendering from a complete rewrite of every subsystem.

Project: Theft4
Original game: Grand Theft Auto IV

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Grand Theft Auto

Compare GTA III’s separately maintained web host with native Liberty City Stories and the experimental Theft4 app for GTA IV.

Read Grand Theft Auto guide

GTA III in a desktop browser
WASM Arcade documents re3-based play, keyboard/gamepad input and local save exports; launch includes advertising.
Liberty City Stories
A native route for the supported PSP US v1.05 edition, with configurable keyboard, mouse and controller input.

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Liberty City through an iPhone or iPad app

Theft4 targets the Xbox 360 release of GTA IV on ARM64 iOS and iPadOS. It uses ahead-of-time compiled game code with a compatibility runtime, while its current renderer prepares frames directly for Metal. That is a different route from the existing PC game and does not require runtime JIT compilation.

The unsigned IPA is installed through a signing and sideloading workflow. It is not the same as a TestFlight invitation or App Store download. The current game-data target is specific: USA retail title 545407F2, media 6AC07221, with the matching TU8 update. Follow that version check before transferring a large installation.

Theft4 · project documentation

Balance city detail with device performance

Graphics settings separate scene resolution from output scaling, and offer shadows, draw distance, model detail, reflection quality and sharpening. The Frame Speed preset shortens world distance and reduces some optional effects while retaining the selected resolution. Changes apply at the next game launch, so restart the game before comparing settings.

Touch input provides a movement stick, swipe aiming and Xbox-style buttons. Physical controllers remain supported with touch controls enabled or disabled. Older GPUs without BC texture support may need a one-time conversion to ASTC; that preparation has progress and resume support, but its existence does not mean older devices perform like newer iPads.

Theft4 · project documentation

Export progress before experimenting

Quit the game, reopen the launcher and use System → Export Saves to Files. Copy the whole dated export folder, which includes saved-game packages and profile data. Import Saves from Files validates a selected backup, saves the current progress before replacement and requires a restart afterward. Game installation files are not part of that backup.

The project still lists freezes during long sessions and app switching, and does not promise a locked 30 fps across devices. Native Aspect Ratio and the optional mods can also increase rendering work or change play. Begin with ordinary settings and keep a save export before trying a more demanding configuration.

Theft4 · project documentation