Relive the critically acclaimed and award-winning Portal with ray tracing and the groundbreaking AI-accelerated performance of NVIDIA DLSS 3. Portal with RTX will be available in November 2022 and free for existing Portal owners. Relive the critically acclaimed and award-winning Portal with ray tracing and the groundbreaking AI-accelerated performance of NVIDIA DLSS 3. Portal with RTX will be available in November 2022 and free for existing Portal owners.