It's not a well-supported/advertised path, but you can always download a pay-for game for an hour and then get a refund if you don't like it.
Google at least used to do automatic refunds if you uninstalled a pay-for app very quickly - I once had that happen with a utility app that I used to convert some stuff - since it worked exactly like I wanted, I re-purchased and left it installed for a few days.
Google at least used to do automatic refunds if you uninstalled a pay-for app very quickly - I once had that happen with a utility app that I used to convert some stuff - since it worked exactly like I wanted, I re-purchased and left it installed for a few days.