We’re super excited to announce our new horror-themed expansion, RimWorld - Anomaly!

This expansion adds all manner of monstrous, mysterious, and maddening threats, containment facilities to capture and study dark entities, and a new reality-twisting endgame. Anomaly releases in one month!


We’re also announcing the upcoming update 1.5 to the base game (which will be released at the same time as Anomaly). You can currently test this update on the unstable Steam branch - see the bottom of this announcement for details. (Note that this is only base game content - Anomaly is not yet available.)

We’ll be releasing more info about Anomaly in a series of blog posts over the next few weeks.

Spoiler warning: Below is a high-level description of the expansion content. There are some spoilers here.

The expansion begins when your colonists accidentally provoke a mad superintelligence. From then on, madness manifests: …