Epic has included features from acquired companies like Quixel in the engine, which is seen as helped by Fortnite's revenue. Its source code is available on GitHub, and commercial use is granted based on a royalty model, with Epic charging 5% of revenues over US$1 million, which is waived for games published on the Epic Games Store. The latest generation, Unreal Engine 5, was launched in April 2022. Unreal Engine is written in C++ and features a high degree of portability, supporting a wide range of desktop, mobile, console, and virtual reality platforms.
Initially developed for PC first-person shooters, it has since been used in a variety of genres of games and has seen adopted by other industries, most notably the film and television industry. Unreal Engine ( UE) is a series of 3D computer graphics game engines developed by Epic Games, first showcased in the 1998 first-person shooter video game Unreal. Source-available commercial software with royalty model for commercial use
