Game engines

The foundational software framework (Unity, Unreal Engine) that provides the core 2D/3D rendering, physics, audio, and scripting tools for video game and real-time interactive content development.

A game engine is the essential software suite for building interactive digital experiences, now extending beyond video games. It integrates critical, reusable systems: a 2D/3D renderer for graphics (e.g., Unreal Engine 5's Lumen), a physics engine for realistic object interaction, and a scripting environment for game logic (e.g., C# in Unity). This component-based architecture drastically cuts development time and cost, shifting focus from core technology to creative content. The technology powers AAA titles (like *Fortnite*) and drives innovation in real-time architectural visualization, film production (Virtual Production), and digital twin simulations.

https://en.wikipedia.org/wiki/Game_engine