Rimworld Fleshmass Jun 2026

When RimWorld: Biotech first dropped, I thought the mechanitor system and the sanguophage bloodlines were the main event. Then, one toxic fall, I saw it: a pulsating, veiny, organic tumor sprouting just outside my base’s killbox. That was my introduction to the .

The central Heart is initially invulnerable to direct damage, including mortars and antigrain warheads. To destroy it, you must follow a specific research-and-destroy process: rimworld fleshmass