The Outer Worlds 2: Guaranteed Side Effects
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Obsidian has announced the Guaranteed Side Effects expansion for The Outer Worlds 2, which will be available on 2 December. This expansion offers a new adventure in the game's universe, with new quests and an increase in the maximum level. Players will be able to explore a new region, Elysium Valley, and discover new equipment and skills.
- Release
- 29 October 2025
- Studio
- Obsidian Entertainment
- Publisher
- Xbox Game Studios
- Genres
- Role-playing (RPG), Adventure
- Steam reviews
- 8,700 reviews
- Steam Deck
- Verified
💶 The Outer Worlds 2: the price in numbers
- Best price today
- €36.89 at Gamivo
- Base price
- €69.99 (now -47 %)
- Lowest price ever recorded
- €27.59
- Key vs Steam
- €36.89 at Gamivo vs €69.99 on Steam (save €33.10)
- Stores compared
- 7
A real deal (-47%), though not its lowest ever (€27.59).
Prices checked by PcMasterRace GAMING, updated 3 times a day.
The announcement of the expansion
The Guaranteed Side Effects expansion has been announced by Obsidian, the development studio of The Outer Worlds 2. This expansion offers a new adventure in the game's universe, with new quests and an increase in the maximum level. Players will be able to explore a new region, Elysium Valley, and discover new equipment and skills.
The expansion will be available on 2 December, which is good news for fans of the game. Players will finally be able to discover new quests and challenges in the universe of The Outer Worlds 2.
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Extension content
The Guaranteed Side Effects expansion offers a new adventure in the universe of The Outer Worlds 2. Players will be able to explore a new region, Elysium Valley, and discover new equipment and skills. The expansion also includes new quests and an increase in the maximum level, allowing players to progress even further in the game.
Players will also be able to discover new flaws, which are characteristics that alter the character's behaviour. These flaws can be useful or harmful, depending on the situation. The expansion also includes new equipment and armour, which will allow players to customise their character even further.
The Context
The Outer Worlds 2 is a role-playing game developed by Obsidian, the same studio that developed the first episode. The game was released about a year ago and received positive reviews for its rich universe and interesting characters. The Guaranteed Side Effects expansion is the first part of a series of two expansions that will be released for the game.
Obsidian has also announced that the story sequel will be delivered in the second expansion, which will be released in 2027. This means that players will be able to discover the next part of The Outer Worlds 2 story in a few months.
Reactions
Fans of The Outer Worlds 2 have reacted positively to the announcement of the Guaranteed Side Effects expansion. Players are eager to discover new quests and challenges within the game's universe. The expansion has also been praised for its rich and varied content, which includes new regions, equipment and skills.
Players have also appreciated the opportunity to discover new flaws and further customise their character. The expansion has been seen as good news for fans of the game, who will finally be able to discover new quests and challenges in the universe of The Outer Worlds 2.
What we know and what remains to be confirmed
It's known that the Guaranteed Side Effects expansion will be available on 2 December and that it offers a new adventure in the universe of The Outer Worlds 2. It's also known that the expansion includes new quests, an increase in the maximum level and new equipment and skills.
However, there are still things to be confirmed, such as the release date of the second expansion or the details of its content. Players will have to wait a few months to find out what happens next in The Outer Worlds 2 story. But for now, the Guaranteed Side Effects expansion is good news for fans of the game, who will finally be able to discover new quests and challenges in the game's universe.
Similar products
Sources
- Gamekult — The Outer Worlds 2 : Guaranteed Side Effects se la joue Alien : Le Huitième Passager
- Rock Paper Shotgun — The Outer Worlds 2's first story expansion could well be the opening to the series' last hurrah and will have you hunting for a cure to "explosive cell death" in December
Written with the help of artificial intelligence from these sources, then run through our automated checks. Our editorial policy
