I've used Grow Cube with great success!

Some ideas for using Samorost with language students

Here's a Spore Creature Creator tutorial

Here's an article I wrote on using Spore with Young learners

Listen & watch 'The English Teacher's Guide to Computer Games and Learning' part 2:
http://bit.ly/bYhHWL

Listen & watch 'The English Teacher's Gude to Computer Games and Learning' part 1: http://bit.ly/dbGpmz

Online games, walkthroughs, articles, book, useful webpages & links for TEFL & online gaming. http://bit.ly/dcrdhw

101 ways (and more) to use Samorost 2 in the TEFL classroom http://bit.ly/a5nr9j

Grammar, vocabulary and skills work with video games - many free online game activities
http://digitalplay.info/blog/