Side Effects Guaranteed launches on December 2, 2026, for $14,99 as the first expansion for The Outer Worlds 2.
Obsidian Entertainment and Xbox Game Studios announced the new content on Xbox Wire as the first chapter of a two-part story. Choices made by players in this first DLC affect the second instalment in the spring of 2027.
A distress signal draws the player’s crew to an abandoned ship. The crew is infected with a condition causing explosive cellular death.
Players travel to Elysium Valley on the planet Eden to find a cure. They encounter Sub Rosa agents disputing plans to save or sacrifice the infected colonists.
The Outer Worlds 2: Side Effects Guaranteed releases on December 2nd, the first chapter of a two-part expansion. More info: https://t.co/3kMCIli5XB pic.twitter.com/MnEonsdolZ
Wild canines and giant variants of primitive sprats inhabit the region alongside the installations.
Side Effects Guaranteed raises the character level cap from 30 to 36. It adds more than 15 new perks and four flaws, including excessive shrinkage.
Five new weapons arrive in the update. They include the Inmovilizador, which makes gravity stop working around targets, and a 1/6 Resolver that fires every sixth bullet with extra power. Players get new armor, companion outfits, and a Sub Rosa radio station featuring 20 new tracks.
The content triggers right before the campaign’s point of no return. Players can also start the expansion directly from the main menu by loading a pre-prepared level 27 character.
The base game is available on PlayStation 5, Xbox Series X|S, PC through Steam and the Microsoft Store, and via the Xbox Game Pass catalog.
The Premium Edition and the Premium Edition Upgrade include the expansion, according to No Somos Ñoños. A simultaneous update for all players allows character respecs at any time and custom skill point adjustments per level.
“Perhaps we’ll focus a little more on some of the minor factions, like Sub Rosa,” Brandon Adler told Gamesradar said, “and flesh them out a bit more.”