The user experience of a game is mostly visual. So, each visual effect adds an extra layer of polishing for the game to increase experience quality. There are several types of users. Visual effect ensures the engagement of the user. Basically, polishing visual effects means each action feedback should be visual.

For example, there are a few users who might be color blind. For them, only color visuals is not enough. This scenario may be improved by introducing visual effects with different shapes of objects or by some other action.

Sound defines the mood of the game. Sound designers design sounds according to the game type. There are two separate types of sound effects:

Most games have multiple stages of action. The main transaction is the one between the stages. Smoother transaction effects result in a better user experience as the user has a clear idea about the flow.

There can be other transactions as well. For example, if the game supports an in-game currency system, then there have to be currency transactions. Most of the time, the user does not pay attention to the numbers and text changes. However, a visible transaction makes the user notice the numbers.

There are many games nowadays that strictly follow the action feedback system. There should be a feedback of each action made by the user. Feedback can be either visual, sound, or both. More prominent feedback results in a better user experience.