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.

Vertical markets are a group of companies focused on a specific niche. Companies in a vertical market provide targeted insight and specialized services. Focusing on a specific market vertical may help a company realize higher profits through a narrower customer base and more cost-effective marketing campaigns.