How to get free Robux | All you need to know | Robux Generator Myth! June 2020. Free Robux Generator free robux generator There are many websites that claim to give free Robux, under the name “Robux Generator” but how real can they be ? It is obvious, of its too good to be true, it probably isn’t. That being said the only Free Robux Generator we tested and can vouch for is the SiteRubix Robux Generator as it works as a GPT website that rewards players in exchange of doing simple tasks, SiteRubix never asks for passwords or any personal or private information and anybody can use it.