A gamer is a person who plays interactive games, especially video games, tabletop role-playing games, and skill-based card games, and who plays for usually long periods of time. Some gamers are competitive, meaning that they compete in some games for money. There are many different gamer communities around the world.

What does a level designer do? Level designers understand what makes good gameplay. They design the game – but only a portion of it, normally referred to as a 'level'. They take the specification defined by the gameplay designer, and get into the detail - the actions, events, objects and environment.