I found an interesting issue on my latest playthrough, and after a bunch of testing managed to break it to the point of giving me double the payout for sold ships. My screenshots are from a modded game, but I've confirmed this also works in vanilla.
If you press the Sell hotkey ("S") while also picking up a ship with the mouse and you get the timing just right (pressing "S" just
after the click seems to work pretty reliably), this happens:
http://www.expand.rs/starsectorbug2.pngThe game will prevent you from clicking the ghost box, but pressing Space/ESC still performs the action, leading into the cash issue mentioned into the title. You can stack multiple copies of these boxes, which then lets you sell exactly two (?) copies of every ship before it stops working. After the second copy, sales stop making the little sell noise and stop adding money.
Using this trick, you can sell your entire fleet twice if you so desire:
http://www.expand.rs/starsectorbug4.png (I had some cash on me, so any variation is due to that -- my fleet got paid for exactly twice)
Don't actually sell everything you own, though, or this happens:
http://www.expand.rs/starsectorbug5.png...yup, that was a bad idea.
Also, if you press the same hotkey while clicking "Refit", you can do this:
http://www.expand.rs/starsectorbug1.png (very weird, you can still edit the ship after selling it but it vanishes when you close out)
Apart from being able to sell ships twice this issue seems pretty benign, but there might be uses for it that I haven't found yet.
Thanks for reading, and keep up the good work. Still having a ton of fun with the game, and it's only been getting better.