Description

ALLIN1 is a Windows mod manager and Story Mode expansion that brings GTA Online vehicles, weapons, gear, and supporting systems into Grand Theft Auto V single-player. ALLIN1 combines a desktop control center, an in-game storefront called GBAY, persistent garages, DLC-aware traffic, character editing, and a general-purpose local mod-package manager.

ALLIN1 supports both GTA V Legacy and GTA V Enhanced.

Important: ALLIN1 is designed exclusively for Story Mode. Do not use it in GTA Online.

Features
GBAY vehicle marketplace: Browse all 461 supported DLC vehicles by category, search and filter the catalog, save listings to a dedicated Favorites tab, view streamed preview artwork, preview vehicles in 3D, purchase them, and deliver them to a garage.
Weapons and gear: Purchase more than 100 weapons, refill ammunition for owned weapons, browse captured previews for armor and equipment, and manage exact per-character loadouts from the desktop manager.
Persistent garages: Maintain independent vehicle collections at several convenient locations, customize garage floors and interiors, store vehicles purchased through GBAY, and sell eligible stored vehicles.
DLC traffic integration: Adds GTA Online vehicles to ambient traffic using class-aware replacements, road and visibility checks, mission, interior, and wanted-level safeguards, distance-based cleanup, and adaptive performance throttling.
Vehicle seat selector: Choose a seat using the configurable selector key, which defaults to L. Accessible seats use native entry and shuffle animations.
Character control: Manage Michael, Franklin, and Trevor independently, including their money, skill levels, weapons, gear, garages, outfit components, props, and named outfit presets.

Desktop control center: Detect the installed game edition, configure gameplay and accessibility options, install or repair ALLIN1, run health checks, export redacted diagnostics, manage profiles, and launch GTA V.
Local mod packages: Install, update, enable, disable, and uninstall user-supplied ASI, ScriptHookVDotNet, RPF, configuration, and data packages through validated mod.toml manifests.
Recovery-minded operation: Creates backups before replacing files, preserves garage recovery copies, detects unclean sessions, provides a safe mode, and writes structured client diagnostics.

Requirements
GTA V Legacy or GTA V Enhanced from Steam, Epic Games, or Rockstar Games Launcher.
ScriptHookV.
ScriptHookVDotNet Enhanced.
Python 3.10 or newer when installing from source.
OpenRPF for GTA V Enhanced, or OpenIV.asi for GTA V Legacy, when GBAY preview artwork is enabled.

ScriptHookV and ScriptHookVDotNet Enhanced must be installed in the game directory containing GTA5.exe or GTA5_Enhanced.exe before installing ALLIN1.

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