Unreal Engine is Epic Games' game engine, the standard for high-fidelity 3D content — AAA games, virtual production for film (the LED volumes used in The Mandalorian), automotive design visualization, and architectural walk-throughs. Unreal Engine 5 brought Nanite (virtualized geometry, no LOD authoring) and Lumen (real-time global illumination) — both significant graphics-quality jumps.
Unreal's C++ core is paired with Blueprints, a visual scripting system that lets non-programmers build gameplay logic. Most production Unreal projects use Blueprints for prototyping and high-level game logic, then drop into C++ for performance-critical systems. The learning curve is steeper than Unity's but the visual fidelity ceiling is much higher.
