Half-Life and Counter-Strike Achieve Online Play on Sega Dreamcast via Xash3D Port

In a striking display of the modding community's dedication, the Dreamcast has become host to online matches of Half-Life: Deathmatch and Counter-Strike, thanks to a recent port of the Xash3D engine.

Although these influential first-person shooters from Valve were never officially released for Sega's iconic console, this new development opens the door for a broader library of PC classics to potentially grace the Dreamcast—nearly 25 years since its initial launch. The project is driven by Russian developer maximqad, whose ongoing work on adapting the open-source, Half-Life-compatible Xash3D engine for the Dreamcast has rapidly gained traction among gaming enthusiasts.

Highlighting the significance of this breakthrough, prominent Dreamcast developer Falco Girgis brought attention to the project on social media platforms earlier this week.

Girgis shared video evidence of the Xash3D engine successfully running a match of Half-Life Deathmatch, underscoring the early stage of the port.

He commented that the build lacked Dreamcast-specific graphics optimizations and hardware-accelerated math routines, which means there is considerable room for further enhancements in both performance and graphical fidelity. Girgis followed up by distributing even more footage, originally shared by Dreamcast modder DreamShell, depicting two players engaging in a Counter-Strike map on Sega's hardware.

In his own words, Girgis marveled at seeing Counter-Strike 1.6 running natively on the Dreamcast, captured directly from the hardware.

He also noted the developer's aspirations to be the first to implement downloadable custom maps and assets from remote servers, with storage capability provided via SD card or the IDE/SATA hard drive mod—an impressive technical leap for retro hardware. Xash3D, the engine at the core of these advancements, is a community-made engine built for Half-Life compatibility.

Its flexibility and open-source design have enabled ports across multiple platforms, but bringing stable online play to the Dreamcast is a rare achievement.

The practical limitations of the console, such as available RAM and data storage, continue to pose unique challenges for developers seeking to extend the life of classic systems.

Still, this project signals a renewed interest in retro game preservation and homebrew innovation within the Dreamcast scene. As of January 2025, gameplay demos of Half-Life Deathmatch and Counter-Strike have been made publicly available to view, offering proof that the Dreamcast can now support online multiplayer experiences well beyond its original library.

While the port remains in early development, the community-driven effort highlights the enduring appeal of both Sega hardware and Valve's most celebrated PC multiplayer titles.

For modders and fans alike, the Xash3D Dreamcast port represents a milestone in retro gaming preservation and showcases what is possible when skilled enthusiasts push the limits of vintage technology.