Need for Speed Underground 2 browser port launched with Claude Code

AI tools are increasingly helping gaming enthusiasts revive online modes for classic titles, and the latest project brings a legendary racing game directly to web browsers. A developer known as th0mk has successfully ported Need for Speed: Underground 2 to Google Chrome and Firefox with fully functional online multiplayer using Claude Code.

• The port is called Underground 2 Revived and runs natively in Chrome and Firefox
• Supports up to 120 FPS in widescreen, free roam, and online races with friends
• Full compatibility with game controllers, steering wheels, and touch controls
• The active server currently hosts around 5,000 concurrent players

Technical foundations and AI assistance

To make this browser port possible, th0mk built upon NFSU2Recomp, an open-source repository originally created by TalhaMudo to bring the classic racing game to Apple Silicon Macs. Using this decompilation base, th0mk leveraged Claude Code to bridge the gap and adapt the desktop game code to run smoothly within standard web browser environments.

The technical achievements packed into this browser version are quite remarkable. The game runs seamlessly across Chrome and Firefox, supporting widescreen displays, framerates of up to 120 FPS, and standard performance expectations that far exceed the original hardware limitations from the game's initial release era.

Multiplayer features and community reception

Beyond the single-player experience, the developer managed to restore full online networking capabilities. Players can join free-roam lobbies or participate in head-to-head races with friends and strangers from all over the world, bringing back the golden era of online street racing.

At the time of release, the main server boasted approximately 5,000 active players online, with roughly 2,000 users cruising in free roam and around 400 engaged in structured races. Hardware support is also robust, accommodating standard gamepads, dedicated steering wheels, and touch screen controls.

What this means for gaming and preservation

Projects like Underground 2 Revived showcase how AI-assisted decompilation and porting tools can radically simplify the preservation and accessibility of classic video games. Instead of dealing with complex local installations or legacy emulators, users can experience vintage titles instantly via the web.

This trend signals a growing movement where fans can easily resurrect dead multiplayer ecosystems of their favorite games. The strong initial player turnout demonstrates that the appetite for classic online gaming remains exceptionally high within the modern community.