GTA III Now Playable in Your Browser: Inside the reGTA3 DOS Web Port

On August 5, 2026, the DosZone Team released reGTA3 DOS — a browser-playable port of Grand Theft Auto III hosted at dos.zone/regta3dos/ . Here is how the team made Liberty City run in a web tab without installation, and the creative legal framework they built to keep it online.

How the reverse‑engineered re3 engine runs in a browser

The port is built on the re3 project, a fully reverse‑engineered version of GTA III's original C/C++ engine code . The DosZone Team compiled that code into WebAssembly (WASM), which any modern browser can execute natively at near‑native speeds. There is no emulation layer and no virtual machine — the game logic runs directly in the browser's runtime . Team representative Nikita Aksyonov said the team used "modern web technologies" to achieve a goal that seemed impossible just six months earlier due to missing source data .

Legal workaround: user‑supplied files and WebTorrent P2P

To avoid distributing Rockstar's proprietary game assets — and to dodge the DMCA takedowns that hit their earlier Vice City port — the team never hosts copyrighted data on its servers. On first launch, players have two options:

• Supply their own original game files manually via an upload button .
• Use the built‑in WebTorrent peer‑to‑peer system, which exchanges game files in real time between currently active players inside the browser, with no central server storing the copyrighted data .

The team has said it is "continuing to develop the webtorrent system" so that users do not need to upload anything themselves .

This approach directly responds to the lessons of the GTA: Vice City browser port released in late 2025. That project was hit by a DMCA notice from Take‑Two Interactive and Rockstar Games in December 2025, forcing a temporary takedown . The team later brought Vice City back with a user‑supplied‑files model, and applied the same strategy — with the added WebTorrent option — to the GTA III release .

Supported features

• Languages: English and Russian
• Resolutions: Any screen resolution is supported
• Input: Gamepad and touch controls are both available
• Saves: Local saves and cloud saves are both supported
• Platforms: Works on virtually any device — desktops, tablets, and phones — with no installation required

Completing the 3D‑era trilogy in browser form

The DosZone Team has now ported two of the three original 3D‑era GTA games to the browser. The Vice City port (released in late 2025, taken down, then restored) was the first . With reGTA3 DOS, the first two entries of the trilogy are playable in a web browser. (As of this release, GTA: San Andreas has not been announced as a browser port by the team.)