Portal with RTX

Portal with RTX is a free DLC for Portal owners, released on December 8, 2022, by NVIDIA Lightspeed Studios. It is a technical reimagining of the original Portal using full ray tracing, high-resolution textures, and enhanced models — it is not a new game with new campaign content, but rather a graphical overhaul of an existing, complete game. Since launch, NVIDIA has continued to update Portal with RTX primarily with graphics technology upgrades. A stability and settings patch shipped on December 22, 2022, followed by a bug-fix in April 2023. In March 2024, a notable update added DLSS 3.5 with Ray Reconstruction, RTX IO support, and new cosmetic cube models. The most recent update, released on May 19, 2025, added DLSS 4 with Multi Frame Generation, the transformer model for Ray Reconstruction and DLAA, and RTX Neural Radiance Cache — all rendering technology improvements. All post-launch updates have been graphics technology upgrades (new NVIDIA rendering features, performance optimizations, and minor cosmetic additions). There is no new gameplay content, no announced story expansions, no unreleased DLC, and no developer statements indicating further content is planned. The store description has been updated to reflect the latest technology (DLSS 4), indicating the product description now represents the current state of the game. Because the underlying game (Portal) was a complete product, and Portal with RTX is a graphical remaster of that complete product, the game is effectively done as of the most recent technology update on May 19, 2025. No further content commitments have been communicated.