A knock-off lego brand that nobody bought known as Blocko noticed that their sales were terrible, so they created artificial intelligence and installed every bit they could into their minifigures, which they called Blockheads. They made it so they could do things like talk to each other, change their appearance, and even create their own organized deathmatches and races. They later created the ability for them to create and manipulate matter with their own tools.
However due to how incredibly expensive it was to make this possible and how incredibly little they were making, they went out of business quickly and abandoned the lab that created these mind-blowing plastic creatures and never told anyone else about them.
This lab and everything inside it stayed unknowingly intact for a very long time. Many years after the apocalypse, a group of scientists have found the lab and one of them accidentally pressed a big red button that said not to press it. Once that happened, every single Blockhead the lab had was teleported away to a completely different galaxy. Every planet in this galaxy was able to be configured at will by the Blockhead that landed on it, and the Blockheads gained teleporting abilities to teleport to different planets in that galaxy that other Blockheads owned.
As one of those many Blockheads, your job is to make the best planet that will grab the most attention from all the other Blockheads, or to simply teleport in on already existing planets and improving everyone's stay.