The Outer Worlds 2’s first DLC arrives December 2
Side Effects Guaranteed adds a new story, Elysium Valley, five weapons and a level-cap increase to The Outer Worlds 2 on December 2.
The Outer Worlds 2 is getting its first major story expansion on December 2. Side Effects Guaranteed is the first half of a two-part narrative adventure, adding a new region, quests, weapons and character-building options. The second half is planned for spring 2027. 1
A new story in Elysium Valley
The expansion begins after the crew picks up a distress signal from a derelict ship. That discovery leads to an abandoned settlement, a power struggle involving the Sub Rosa criminal organisation and a grim mystery surrounding a team facing explosive cell death. 1
Side Effects Guaranteed adds Elysium Valley, with new quests and facilities to explore. Five weapons join the arsenal, including the Immobilizer, which suspends targets in mid-air, and the 1/6 Resolver, which gives every sixth bullet extra force. A new Tossball Stick, creature-damaging weapon and plasma weapon round out the additions described in the announcement. 1
The level cap rises to 36, alongside new perks and flaws. The expansion also brings a Sub Rosa radio station with 20 new songs. Players who want to jump straight into the DLC can start a new game with a level-27 pre-made character, while a separate update adds the ability to respec at any time and adjust skill-point gains through custom-game options. 1
Release details
Side Effects Guaranteed launches on December 2. It is included with the Premium Edition and Premium Edition Upgrade for The Outer Worlds 2. The announcement does not give a standalone price. Part two of the story expansion is scheduled for spring 2027. 1
Our opinion
This is a smart first expansion for The Outer Worlds 2: it adds a self-contained story, a substantial new region and enough build experimentation to make another playthrough worthwhile. The level-27 start is particularly useful for players who finished the campaign without a save ready for new content. The unanswered question is whether the second half can match this first chapter’s breadth, rather than simply extending its cliffhanger.
The official announcement also gives the expansion a stronger identity than a routine quest pack. Elysium Valley, Sub Rosa’s political stakes and the new respec options point towards a release that changes how players approach the wider RPG, not just a short detour from it.