Leroux: even the
Legacy of Kain series share similarities with Zelda games, too, even though they're not the first titles I'd have thought of.
Actually, especcially
Soul Reaver 2 comes to mind when I'm asked about PC games like Zelda.
It shares a lot of the mechanics with
Ocarina of Time and
A Link to the Past, has great graphics for its age and has a design and storyline that blows every Zelda game completely away.
Blood Omen 1 is right next on the list although I haven't really played this one very far due to technical problems with the PC version. It seems to need a drive that is formatted to FAT32 in order to run stable from what I've read later. Hopefully GoG's team will sell a Win95, FAT32, etc... calibrated WINE package of it some day.
Soul Reaver 1 is great for canon but you get lost in it very easy, it took me several tried to finally beat it without getting lost and I had the same problems again years later in the next run.
The others (Blood Omen 2, Defiance) are a bit too much on rails to be counted imho, although they were fun.