I am not advocating PTP / PTW
I do think it would be good to offer some in-game purchases (cosmetic or other non-essential items) that would allow people who want to use real money to support the devs. Maybe it is a unique fishing rod skin, different skins for wands or muskets, etc. Maybe this is in the works or already been shot down. I am rather new and have fallen in love with Orbus. I think now that it is live you could raise a lot of funds through Steam purchases.