The Dragon Age series is set in a fantasy world where magic exists and there are monsters called dark spawns coming from the underworld. Just think Legend of the Seeker.
Each game has a different storyline but the premise is that you are responsible for saving the world. The games don’t directly follow each other but the choices you made in the previous game shaped the world in the subsequent games.
You can customize your character to look the way you want, and you can pick between difference races, such as human, elves, dwarves, and in Dragon Age: Inquisition, as Quanari.
You can be a mage, a rogue, or a warrior. Each profession has a highly expansive specialization. Based on who you are (your race, your gender, your background- royalty versus commaner), the way the NPC (nonplayable characters) speak to you and treat you are different. In fact, the first Dragon Age game (Dragon Age: Origin) is based on the idea that due to the different origins, you have different dialogues, and different reactions to you in the game.
All of the Dragon Age games are supposed to take into account the player’s choices and actions in determining the ending. At some level, it is true. You will get a different ending based on the choices you made and certain characters will be alive or dead because of your actions. You feel as though your choices matter and at the end of the game, you looked back on the choices you made and wondered how the ending would be different if you made different choices.
You play as the character you customized at the beginning and you can assemble a team of up to three companions. You can switch out your companions whenever you are at a home base. Sometimes your companions chat to each other about random things, or about you, when your team and you are running about in the world. Your action can increase or decrease the affection rating of your companions. And to build your friendship, you can discuss certain topics with your companions and gift them items.