I may give Obduction a go, although I seen mixed reviews and apparently it's very demanding on the old PC which since I have and old i5 and a (very) budget Nvidia card, may be a problem.
Looks interesting, completely unplayable on my setup.
Yeah, now that I've read a bit more, I think it would be doubtful on mine. What's worse is that it has shipped with a huge fistful of bugs and glitches. Pity really.