Unreal engine game development is a production of live or multiple player strategy games which involves critical thinking. Strategy games are the games in which players are free to make autonomous decisions in it. Thus, these games require the tree of decision structure. For example, they should be ready to respond to all possible actions of the player. Gamers love to spend their time playing strategy games.
Source: https://stalliongaming.com/glossary/unreal-engine-game-development