This game is currently in development and not yet available.
More information will be released soon about how it works with a 'post' about it.
Saving the World Tycoon is a simulator/tycoon game where you get zombies, cure them, then get rewards and expanding your Zombie Curing Empire/company.
Currently, development has been slow so a release date hasn't been publicly announced or discussed amongst the developers, but I would estimate the summer of 2027 or 2028.
For right now, we have no idea what plafroms will it be on release, but we are planning on releasing it on PC (Windows/Mac) and mobile devices (phones/tablets)