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The Hero meets an explorer that is searching for the mythical kingdom of Atlantis, and together ...

The Hero meets an explorer that is searching for the mythical kingdom of Atlantis, and together they set out on a journey across the western Mediterranean. The key lies in the legendary Diary of Herakles, rumored to be in the Phoenician City of Gadir, but their journey will take them beyond the edges of the known world...

Atlantis Quest

Play a classic Titan Quest adventure in single player or up to 6 players in co-op
New items and unique rewards

Tartarus Endless Mode

A wave based challenge mode, playable in single player or up to 6 players in co-op
Random elements change up the gameplay

Expanded Masteries

Unlock a new tier of skills for each mastery

Visual Upgrades

Graphical upgrades such as SSAO and color grading

Quality of Life Improvements

Quick cast, easier storage and other long-awaited perks

Casino Merchant

Spend your excess in-game money on randomly generated loot

NOTICE: This content requires the base game Titan Quest Anniversary Edition on Steam in order to play.

Minimum Requirements:

Recommended Requirements:

To activate the Steam key you've received, follow the instructions below;

First up, open the Steam client. (If you don't have it, simply click the "Install Steam" button here => Steam Store )
Sign in to your Steam account. (If you don't have one, click here to create a new one => Steam Account)
Click on the "ADD A GAME" button in the bottom corner of the client.
Then, select "Activate a product on Steam..."
Write down or copy-paste the activation key that you've received from %s in the window.
Your game is now visible in your library! Click on your "Library".
And finally, click on the game and select "Install" to start your download.