NVIDIA RTX technologies are deeply integrated into Unreal Engine 5 through the NVIDIA RTX Branch of Unreal Engine and the NVIDIA DLSS Unreal Engine plugin . This provides developers with direct access to advanced rendering, frame generation, and ray-traced lighting. NVIDIA is expanding this integration with new tools for building on-device AI characters and gameplay, as announced at Unreal Fest 2026 .

This post covers:

The new NVIDIA ACE Game Agent SDK for building on-device AI companions

New NVIDIA ACE Unreal Engine 5 plugins for ASR, LLM, and TTS with blueprint and C++ support

A live Level Up with NVIDIA webinar on June 30 covering the new ACE plugins

How to get started with DLSS 4.5 in Unreal Engine

Build on-device AI companions more easily with NVIDIA ACE

AI is unlocking next-generation NPCs that deliver experiences that were previously impossible.…