That brings back awesome memories, Riven was one of my favorite games ever, and I finished it all without a walkthrough. The animal puzzle was probably the one I got stuck at the longest. I actually got frustrated and didn't touch the game for 2 months. Eventually, the solution came to me as I was waking up. By the way, there's a no cd patch available for Riven. It's not official, but it works great. As long as you still have your cds, and have the space available on your hard drive (only 2.67 gigs, not a lot on today's standards), you won't need to bother with changing cds all the time. I also finished myst 3 and 4. The fifth one, I played for about an hour, but the fact that they replaced actors by animated character destroyed the mood for me, it just didn't feel the same. It's also set 50 years after Myst 4, or something like that. To me, a Myst game without Atrus isn't really a Myst game. Overall, I'd say Riven is the best title, followed closely by the original Myst. The 3rd and 4th game are worth it if you're a fan, but not as good as the first two, and Myst 4, especially, can be frustrating, as a lot of puzzles revolve around precise and fast mouse movement. So many times, I knew the solution, but couldn't drag my cursor fast enough while keeping the necessary precision.