Growlactus serves as a boss for the Startopia update. It can be fought by travelling to The Galactic Nexus, and reaching 25,000,000 Star Miles along with a minimum ship rating of 12,000.
Starting a fight changes the background's weather to the Growganoth weather and permanently renders your Starship unusable, whether success or fail.
- Main article: Guide:Star Voyage
|Wriggling Tentacle||Guaranteed bonus prize|
|Vile Vial - Chaos Infection||1/2 (50%), bonus prize|
|HyperTech Starship Blast||1/4 (25%)|
|Star Tool Droid||1/4 (25%)|
|Space Thruster Boost Boots||1/6 (~16,6%)|
|MagTron LightCycle||1/10 (10%)|
|Startopian Empire - Force Shield & Phase Blaster||1/10 (10%)|
|EzCookOven's Robotic Tentacles||1/100-120 (~0.8-1%)|
|Horns of Infinity||1/100-120 (~0.8-1%)|
|Mjolnir||While wearing a Legendary Map - Deciphered|