Creating Immersive 3D Landscapes for Gameplay

[toxatyt]

Every element that helps create a unique world is important to me. I want to learn how to create 3D landscapes that are not only beautiful, but also effective in terms of gameplay. How to properly work with terrain, vegetation, and other natural elements so that the world is not only alive, but also interesting for players? I am looking for advice on creating worlds that will organically combine with game mechanics in Unreal Engine.