Buy Dungeon Siege III: Treasures of the Sun PC Key

This content requires the base game: Dungeon Siege III

Looking for a cheap Dungeon Siege III: Treasures of the Sun key? As of 21 Aug 2026 the cheapest key costs A$1.67 at Gameseal. We compare 14 offers from 13 stores, spanning A$1.67 to A$14.61. In keyshops the lowest price is A$1.67, in official stores it starts at A$9.95. With this many sellers the gap between the extremes is often several times over, so picking the store matters more here than waiting for a sale. The price ranks among the lowest we have recorded, cheaper on only 24% of days with data. This is an add-on, so you also need the base game to play it. That costs A$5.63 today, which puts the pair at A$7.30. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.

Metacritic:
tbd 8.1
Steam:
Very Positive (77)
Buy in Official Store:
A$9.95
Buy in Keyshops:
-83%
A$1.67
See price history

Official Stores (2)

DRM:
Steam
Steam
Green Man Gaming
Dungeon Siege 3: Treasures of the Sun
Windows
5d ago
DRM:
Steam
Green Man Gaming
A$9.95
Steam
Dungeon Siege III: Treasures of the Sun
Windows
1w ago
DRM:
Steam
Steam
A$9.95

Keyshops (12)

DRM:
Steam
Steam
Gameseal
Dungeon Siege III: Treasures of the Sun (DLC) (PC) Steam Key - GLOBAL
Windows
1h ago
DRM:
Steam
Gameseal
A$9.95 ~A$1.67
-83%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
Difmark
Dungeon Siege III Treasures of the Sun (DLC)
Windows
3w ago
DRM:
Steam
Difmark
A$9.95 ~A$1.96
-80%
-15% with XDDEALScopy
-15% with XDDEALScopy
Dungeon Siege III - Treasures of the Sun DLC
5.0
Windows
13h ago
DRM:
Steam
Yuplay
A$9.81 ~A$2.05
-79%
-3% with XD3OFFcopy
-3% with XD3OFFcopy
Dungeon Siege III - Treasures of the Sun (DLC) Steam Key GLOBAL
5.0
Windows
9h ago
DRM:
Steam
Eneba
A$11.48 ~A$2.06
-82%
-10% with XDD10copy
-10% with XDD10copy
Driffle
Dungeon Siege III - Treasures of the Sun DLC (Global) (PC) - Steam - Digital Key
Windows
13h ago
DRM:
Steam
Driffle
~A$2.18
-6% with XDDEALS6copy
-6% with XDDEALS6copy
G2Play
Dungeon Siege III: Treasures of the Sun DLC PC Steam CD Key
Windows
8h ago
DRM:
Steam
G2Play
A$11.48 ~A$2.38
-79%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Dungeon Siege III: Treasures of the Sun DLC PC Steam CD Key
Windows
9h ago
DRM:
Steam
Kinguin
A$11.48 ~A$2.38
-79%
-8% with XD8DEALScopy
-8% with XD8DEALScopy

Packs (1)

About Dungeon Siege III: Treasures of the Sun

Dungeon Siege III: Treasures of the Sun - about the game

Dungeon Siege III: Treasures of the Sun serves as an expansion to the core action RPG experience of Dungeon Siege III. Set in a new desert region called the Aranoi Desert, the content follows the search for a missing Legion hero while uncovering secrets tied to the Azunite faith. Combat remains rooted in real-time action with party management, where players direct multiple characters through battles against enemies using a mix of melee, ranged, and spell-based attacks.

Gameplay

The expansion builds directly on the base game's systems by introducing new arcane abilities focused on offense, defense, and healing. These powers expand tactical options during fights against fresh enemy types that include mummies and giant skeletons. Character progression extends beyond the original limit, allowing leveling up to 35 and access to stronger equipment drawn from an expanded pool of items.

Talent and proficiency points can be reset at any time, which supports experimentation with different builds without starting over. A new enchanting system replaces basic transmutation with the chance to obtain Vials that upgrade weapons and armor with additional effects. Exploration centers on the Aranoi Desert and a hidden abbey, where the narrative advances through quests centered on the lost hero and the Azunite treasure.

Game Modes

The primary experience consists of a linear story campaign that integrates seamlessly with the base game. Players progress through desert environments and abbey interiors while managing party members in real-time encounters. No separate competitive or survival modes appear in the expansion, keeping the focus on narrative-driven progression and combat encounters.

Cooperative play carries over from the main title, allowing multiple participants to join the same campaign session. Side activities remain limited to optional quests that provide additional context and rewards within the desert setting.

Story and Setting

The plot shifts the action outside the borders of Ehb into the Aranoi Desert, where an undead threat emerges alongside the search for the missing Legion member. The journey leads to a forgotten abbey that holds the central secret of the Azunite faith. Environmental details emphasize arid landscapes and ancient structures, with new monster designs reinforcing the shift in atmosphere from previous regions.

Is It Worth Playing?

Reviews for the expansion describe it as a solid addition that delivers several hours of new content without altering the fundamental combat loop. Steam user ratings sit at Very Positive based on the available review volume. The ability to reallocate points and the new enchanting options improve flexibility for players who enjoy refining their characters mid-campaign.

This content suits fans of the original Dungeon Siege III who want more story and combat encounters in a distinct environment. Those seeking extensive multiplayer features or major mechanical overhauls may find the scope modest, while the added abilities and level cap increase provide meaningful progression for single-player or small-group playthroughs. The expansion remains available as a standalone purchase for those who already own the base game.

Interface:
GermanEnglishSpanish - SpainFrenchItalianPolishRussian
Metacritic:
tbd 8.1
Steam:
Very Positive (77)

Minimum:

  • Processor: Core 2 Duo 2.5 GHz or equivalent
  • Memory: 1.5 GB
  • Graphics: ATI Radeon HD 3870 or NVIDIA 9800 GT
  • Storage: 4 GB for full installation

Recommended:

  • Processor: Core i5 750 2.67 GHz or equivalent
  • Memory: 2 GB
  • Graphics: ATI Radeon HD 4870 or NVIDIA GTX 260
Historical low
Price history from official stores
A$1.39
Green Man Gaming
1 weeks ago
Price history from keyshops
A$1.49
Gameseal
3 weeks ago
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FAQ

9 questions

Before you start looking for a cheap Dungeon Siege III: Treasures of the Sun PC key, check the essentials. Developed by Obsidian Entertainment. Published by Square Enix. PC released date: 25 Oct 2011. Genres: Action, RPG. Categories: Multi-player, Family Sharing, Co-op, Single-player, Downloadable Content, Steam Achievements, Steam Cloud, Partial Controller Support.

Q

Where to buy a cheap Dungeon Siege III: Treasures of the Sun Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Dungeon Siege III: Treasures of the Sun key for as low as A$1.67. This deal is available at Gameseal and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Dungeon Siege III: Treasures of the Sun price on PC. Check the Dungeon Siege III: Treasures of the Sun price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Dungeon Siege III: Treasures of the Sun Steam price is A$9.95. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Dungeon Siege III: Treasures of the Sun on sale even outside seasonal promotions. We currently detect 14 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Dungeon Siege III: Treasures of the Sun is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

We have recorded offers from 15 stores in total, and from 1 in the most recent reading. Today you pay 17% of what this game cost at its most expensive reading. The cheapest offer came most often from Kinguin: 45 of 176 days with data. The historical low is A$1.39, recorded on 15 March 2025.

Yes. Dungeon Siege III: Treasures of the Sun has an official page on the Steam Store. You can also buy a Dungeon Siege III: Treasures of the Sun Steam key from third-party sellers. Our price comparison currently includes 14 offers with Steam DRM. Pick one to ensure your Dungeon Siege III: Treasures of the Sun download happens on Valve's platform.

Not at this time. Valve marks Dungeon Siege III: Treasures of the Sun as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data Dungeon Siege III: Treasures of the Sun is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Dungeon Siege III: Treasures of the Sun deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Dungeon Siege III: Treasures of the Sun

1 Gameseal Gameseal Keyshop
-83% A$1.67
2 Difmark Difmark Keyshop
-80% A$1.96
3 Yuplay Yuplay Keyshop
-79% A$2.05
4 Eneba Eneba Keyshop
-82% A$2.06
5 Driffle Driffle Keyshop
A$2.18

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