Is Dragon Age: Inquisition on Steam?

No. Dragon Age: Inquisition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.

What platforms is Dragon Age: Inquisition on?

Dragon Age: Inquisition is available on PlayStation 3, PlayStation 4, PC (Microsoft Windows), Xbox 360, Xbox One.

When did Dragon Age: Inquisition release?

Dragon Age: Inquisition released on November 18, 2014.

Dragon Age: Inquisition

Nov 18, 2014Role-playing (RPG)StrategyTacticalPlayStation 3 PlayStation 4PC (Microsoft Windows)Xbox 360 Xbox One

Dragon Age: Inquisition — frequently asked questions

Is Dragon Age: Inquisition on Steam?: No. Dragon Age: Inquisition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.
What platforms is Dragon Age: Inquisition on?: Dragon Age: Inquisition is available on PlayStation 3, PlayStation 4, PC (Microsoft Windows), Xbox 360, Xbox One.
When did Dragon Age: Inquisition release?: Dragon Age: Inquisition released on November 18, 2014.

About Dragon Age: Inquisition

Dragon Age: Inquisition is a role-playing game and the third main game in the Dragon Age series. It is set in the Thedas continent, the same fantasy world as the two previous games. It consist of two large countries: Ferelden (from Dragon Age: Origins) and Orlais, as well as the land inbetween. True to the spirit of the series the character can be customized for appearance, sex, class and race. The available races are dwarf, elf, human, and Qunari and the classes are mage, rogue, and warrior with three specializations each. To grow the Inquisition experience needs to be earned by completing quests, which allows the player to further define allegiances and pursue romances. A custom party can be defined and each member benefits from experience as it opens up access to better weapons and more abilities. Power points open up new areas and Inquisition points define the influence over the region; each new level provides a perk that benefits the entire Inquisition.

Summary via IGDB.

Dragon Age: Inquisition on Wikipedia

Dragon Age: Inquisition is a 2014 action role-playing video game developed by BioWare and published by Electronic Arts. The third major game in the Dragon Age franchise, Inquisition is the sequel to Dragon Age II (2011). The story follows a player character known as the Inquisitor on a journey to settle the civil unrest in the continent of Thedas and close a mysterious tear in the sky called the "Breach", which is unleashing dangerous demons upon the world. Dragon Age: Inquisition's gameplay is similar to its predecessors, although it consists of several semi-open worlds for players to explore. Players control the Inquisitor or their companions mainly from a third-person perspective, although a traditional role-playing game top-down camera angle is also available.

Source: Wikipedia (text under CC BY-SA 4.0).