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Modder Runs GTA III, Vice City and San Andreas Together With Live In-Game Portals

The demonstration uses community reverse-engineering tools to show real-time cross-game interaction and raises fresh copyright questions for the franchise's rights holders.

Overview

  • The mod drew widespread attention after a video posted Tuesday and Wednesday showed three PS2-era GTA games running at once with interactive portals that link their worlds.
  • Technically the project compiles each game into a single process that shares one Direct3D device and renders each game's view as a live GPU texture rather than a captured video.
  • Players can shoot through portals, trigger NPC and police reactions across game instances, and walk through a portal to instantly hand control to the other game's protagonist while the others keep running.
  • The mod is not publicly released; the creator has directed followers to his GitHub for updates and reporters warn Rockstar Games or Take-Two could issue takedowns under copyright law.
  • The work was built by modifying community projects such as re3, reVC, plugin‑sdk and librw and is seen as a technical showcase for the modding scene that gained extra attention ahead of GTA 6's planned November 19, 2026 launch.