Building a mega-base is a lot of fun, but if you are like me, you need a reason to do so. This companion-mod for Krastorio2 might provide this reason for you: At the end of the game you have to activate the "Intergalactic Transceiver" to win the game. With this mod it will take multiple attempts to create a stable and contained singularity with said transceiver, each requiring more resources and energy than the last.

The amount of resources (late game science cards) and the number of attempts can be configured, but on default settings you will need 10 attempts with a total of about 1,000,000 late game science cards each.