NGRThe Outer Worlds 2 DLC 'Side Effects Guaranteed' Arrives December 2
The first narrative expansion for The Outer Worlds 2 launches December 2, introducing a new region, level cap increase, and story choices that impact future content.
Image: Official publisher video thumbnail
Obsidian Entertainment has confirmed that the first narrative DLC for The Outer Worlds 2, titled Side Effects Guaranteed, will release on December 2. The expansion costs $14.99 or is included in the Premium Edition and Premium Edition Upgrade. It introduces a new region called Elysium Valley on Eden, where players investigate a contamination incident involving a criminal organization known as Sub Rosa.
The update significantly expands gameplay mechanics by raising the level cap from 30 to 36. This increase allows players to access three additional perk tiers, with 15 brand-new perks added to the game. Four new flaws are also introduced, such as 'Lethally Tolerant,' which increases max toxicity but causes instant death during a Toxicity Crash, and 'Must Have Been the Wind,' which offers combat buffs or debuffs based on target accuracy.
New content includes vicious canids, primal sprats, new weapons, armor, and companion outfits. A new Sub Rosa-run radio station will feature 20 new songs. Players can start a new game directly at the beginning of the DLC via an alternate starting point in the main menu. Choices made in this expansion will directly impact the second part of the overarching story, which is scheduled for Spring 2027.
Announced release date: 2 Dec 2026
