The new open-source ZLUDA v6 update lets AMD graphic cards run legacy Nvidia PhysX effects natively, boosting performance in classic games like Mafia II by over 3x.
The latest ZLUDA v6 update, released on 29 June 2026, introduces experimental support for Nvidia’s legacy 32-bit hardware PhysX ecosystem directly on AMD Radeon GPUs. This release allows Radeon owners to experience hardware-accelerated PhysX effects—such as complex visual debris, cloth physics, and realistic flames—in classic PC games natively, without needing a dedicated secondary Nvidia GPU.
ZLUDA is an open-source library historically designed to run Nvidia CUDA applications natively on non-Nvidia hardware. In real-world benchmarking using Mafia II on an AMD Radeon platform (tested via an AMD Ryzen 9 9950X3D and Radeon RX 9070 XT system). Without ZLUDA, the game scored a “D” rating, crawling at a sluggish 26.2 FPS, but with ZLUDA v6, the frame rate jumped over threefold to a highly playable 80.2 FPS, earning an “A” rating.
While ZLUDA traditionally focused heavily on Linux pipelines, v6 brings improved Windows compatibility. This includes dedicated texture support to assist with both gaming workloads and Blender rendering. It also features upgraded error reporting and diagnostics for missing ROCm libraries, alongside minor compiler bugfixes for Windows Machine Learning (ML).
Because optimisation is in its early, pre-alpha stages, users can currently expect fluid simulation bugs and occasional difficulty getting ZLUDA to inject or load correctly into some Steam titles. Lead developer Andrzej Janik confirmed that ZLUDA has lost its commercial funding from its previous unnamed backer. Consequently, the project has transitioned back into a voluntary “weekend hobby project”, meaning future version updates will be released far less frequently.
