I guess opinions are divided on Dear Esther - some see it as just pointlessly walking around an island without being able to do anything, but I agree with the many reviews that saw it as a great blend between storytelling and beautiful visuals. I played the 30 min free trial for a bit on Onlive when Dear Esther came out, but my internet connection isn't really good enough to really enjoy games on Onlive. Was quite excited when I saw that Steam now has this on Steamplay (pretty sure that first they just had it as PC only), and at the same time it's on offer for around £3 till the 18th! Looks amazing - even with my 2009 iMac Nvidia 9400m I can crank the resolution up to almost full resolution and full detail without framerates becoming a problem. Highly recommended.