Autonomy is mainly about self-expression. Being able to choose your skins, your dance moves, or how you can overcome obstacles allows you to feel more autonomous. This is why sandbox games (e.g. Minecraft or Grand Theft Auto V), and games offering a lot of cosmetic options (when these options are meaningful to players) are often engaging.

理解人脑的基本运作方式，遵循用户体验设计准则，运用科学的方法，建立一个用户体验流程将帮助开发者更高效地实现目标。

The HUD prevents players from remembering elements, such as what gun or abilities they have equipped, how much ammunition they have, or what their next objective is. In Fortnite, a lot of information is always displayed, such as what key to press to search an item. Players do not have to remember this information; it always pops up in the UI for them. Another example is the option for players to pin a recipe they are interested in crafting in their HUD. They do not have to remember what ingredients they need to harvest; they can simply concentrate on their objectives. Our memory is fallible. It can sometimes be very frustrating to come back to a game and not remember the controls, objectives, or how certain systems work. Alleviating players’ memory load is thus important to ensure that they won’t quit a game because they don’t remember some critical information to have fun.