The best Zelda like I have ever seen on the C64.  Great for my C64 Ultimate I just received. 
Notes:
1.  You can only download it for free, not buy a commercial version (unless you are willing to pay 55 Euros plus 30 Euros shipping if you like in the US like I do)
2.  I think the free version has everything the expensive version has.

3.  I don't see a way to give them a donation for the free version either.  If you like this game, rate it like I did and maybe buy one of Psytronik's other games!