Codex Gamicus
User interface
Basic Information
Type(s)
Terminology

User interface refers to the system of visual and interactive menus, buttons, icons, and features that display on-screen at all times during gameplay. The main difference between a user interface and a HUD, is that the user interface is interactable and allows the player to access a variety of menus and information by clicking on an icon, or pressing the menu's hotkey, whereas a HUD is static and merely displays combat information such as health, ammo, quest log, minimap, or compass.