The introduction of GPUs changed the landscape of game development, but much of Unreal Engine's early development focused on software rendering before real GPUs became available.

The development of Unreal Engine involved a collaborative effort from a diverse team, where constant iteration and improvement were key to success.

Unreal Engine is a comprehensive software package that provides all the necessary functions to build any 3D graphics application, used not only in gaming but also in film, television, and industrial design.

Unreal Engine was initially developed in C, later transitioning to C++ for better performance and maintainability, which was crucial for the game's success.

Unreal Engine transformed the gaming industry by focusing on creating a powerful game engine rather than just individual games, which was a significant bet in 1995.

Indie developers can thrive by using Unreal Engine, as it provides tools that enable them to create games efficiently, even as solo developers.

Licensing the Unreal Engine to other developers became a critical revenue stream for Epic Games, allowing them to fund further development of the engine.

Epic aims to support indie developers by providing productivity tools and a content marketplace, allowing them to focus on unique game content without building every asset from scratch.

The evolution of Unreal Engine from 1 to 5 has been marked by significant performance gains in hardware, allowing for increasingly realistic graphics and dynamic environments, but the biggest limitation remains its single-threaded nature of game simulation, complicating game logic and making multi-thread programming more challenging.