The Voidwyrm is tamed by weakening it until it glows blue, mounting it, and feeding it Mutagen after each barrel roll, repeating the process if it throws you off. It is a powerful PvP mount whose breath can damage enemies and Tek structures, stun or dismount riders, and assist with travel and resource gathering in the Space biome, while its eggs support taming Noglins and Basilisks. When encountering one, use solid cover to block its plasma breath, approach with a durable mount, and avoid relying on weak transport creatures because of its devastating close-range attacks.