This here is the very definition of a mad lad. Pure vanilla No portals 2 million cells of a double track railway built without any mods, only blueprint and construction drones Several tens of millions of killed bitters 10,000 hours of play on the internal counter (in fact, one and a half to two tim...

This here is the very definition of a mad lad.

TL;DR Make the game load assets (mods, sprites, ect.) in the background. What ? Prioritize loading (and displaying) the main menu and essential assets first, before loading all the other game assets, and if you want to get into a world before the game has finished its loading, finish the game loadi...