Rimworld Вђ“ Biotech Free - Download (v1.4.3541)

: A colonist with a special brain implant can psychically command a personal army of "mechanoids".

Even without the DLC, version 1.4 introduced several features to the base game: RimWorld – Biotech Free Download (v1.4.3541)

: Decomposing corpses now release a gas that can cause "lung rot" in colonists. RimWorld - Biotech on Steam : A colonist with a special brain implant