A person who plays any kind of game.
A homosexual gamer.
A person whose hobby is video games.
Gaymer and gay gamer are umbrella terms used to refer to the group of people who are identified as homosexual and have an active interest in video games or tabletop games, also known as gamers. Lesbian, bisexual, and transgender gamers are often categorized under this term.
A person who games the system.
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.