I liked it, it's a nice relaxing one, but a few issues I think could be worth checking imo:
- Oil tank at lvl 2 or 3, it's useless to level it up anymore because oil will always outpace the night timer.
- Islet embellishments... not sure if they do anything or just decorative, in which case it's kind of a waste of material early on.
- I would expect waaay more upgrades, specially things like "extra ships", since even with Docks at 3 the numbers of ships could be underwhelming. Or % to appear a special ship that could give you lots of materials, idk.
- Prestige (or stsge levels) is kind of meh, doesn't give much in return. I mean yes, it's quicker for sure, but there's no real objective goal to do them.