Do I need the original game files to run Gran Turismo 2 Recompilation?

Yes. The project does not include the original game's assets, so you need your own copy.

How is Gran Turismo 2 Recompilation licensed?

project: MIT (code in this repository); RecompOne authors: MIT (RecompOne). The repository itself is the authoritative source.

Gran Turismo 2 Recompilation

RecompilationActive

The original game's compiled code translated into a native program for a new platform, usually a PC port.

Based on Gran Turismo 2

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Image of the original game, Gran Turismo 2. This project has no screenshots of its own yet.

Gran Turismo 2 (original game, not this project) — Image of the original game, Gran Turismo 2. This project has no screenshots of its own yet.

Links, repository & details

About

Gran Turismo 2 (PlayStation, SCUS-94488) statically recompiled into C# with RecompOne. The README says the game boots and plays, with menus and arcade mode working, save data on emulated memory cards, and an alpha-stage internet multiplayer mode. It requires your own Gran Turismo 2 Combined Disc (USA) and the .NET 10 SDK, and has been built and played on Windows.

How it differs from the original

Adds online multiplayer that the original never had, in alpha: a room list, lobby, qualifying and races against other players over a local network or the internet through a relay. The second title-menu item is renamed MULTIPLAYER.

Getting started

Put your disc image (.cue/.bin or .chd) in the disc folder, point config/gt2.json at it, recompile the game into C# with the RecompOne recompiler, then run the project with dotnet. For multiplayer, one machine hosts, and others join through the same network, a forwarded port, or a relay by address or by six-character room code.

Known issues & limitations

Multiplayer is in alpha.
Loading is slower than expected at one point during a race start.
Remote cars are drawn interpolated between received positions, so a long stretch of dropped packets holds a car at its last known place.

What you need to run it

Original game files required. The project ships code only; you provide your own copy of the game (PlayStation version).

You need the .NET 10 SDK.
The project has been built and played on Windows.

Features

The game boots and plays, including menus and arcade mode.
Multiplayer is in alpha, with room lists, lobbies, qualifying, and races against other players on a local network or over the internet through a relay.
Save data works on emulated memory cards.

How to install

Download the latest release.
On first run, select your disc image in the window’s disc picker, or set its path in settings.json.

Controls

Choose the second title-menu item, labeled MULTIPLAYER, to open the multiplayer window.
To host, enter a name, create a room, choose a track and player limit, then wait in the lobby.
To join by address, enter the host address with :34719 and press Join by address.

Summarised from the project's README.

Licensing & legal

The repository code and RecompOne are MIT licensed, and no Gran Turismo 2 content is distributed.

FAQ

What is Gran Turismo 2 Recompilation?: Gran Turismo 2 Recompilation is an open-source recompilation of Gran Turismo 2. The original game's compiled code translated into a native program for a new platform, usually a PC port. The original game ran on PlayStation.
Do I need the original game files to run Gran Turismo 2 Recompilation?: Yes. The project does not include the original game's assets, so you need your own copy.
How is Gran Turismo 2 Recompilation licensed?: project: MIT (code in this repository); RecompOne authors: MIT (RecompOne). The repository itself is the authoritative source.