Hints
There is always extra utopium either in the trees, the utopium mine and in the sheriffs credits there is always one person with a utopium on his card. Also from the surprises.
Check the town hall when a question mark appears above it, you'll get a hint.
Characters you can't splice at the moment will be grey in the splicing menu.
Watch out for hearts appearing above your dwellings. You can use these to get extra rewards.
Explore the galaxy in the franchise's first open-world game.