You are all in for some fun with Samorost!
Here are some pointers:
1. Be familiar with the game yourself, ie play the game right through. You can google walkthroughs and cheats for it too!
2. Be prepared! Know what you want the students to get out of each episode ,,,,but be prepared also to let the students lead as well. Follow where they go - use their language and ideas. This gives the students ownership of the language.
3. Don't be shy :) - get physical! Act out, role play, demonstrate feelings, emotions etc
4. Play, play, play - with the ideas, with the language, with the words. Change rearrange and innovate on the language/word/ideas that the students come up with.
5. My students worked through the game altogether on the interactive whiteboard (would work just as well on a large screen with a data projector) first. They had to work through all the clues themselves. This took a a bit of time, but I felt it was really important for the students to immerse themselves in the game and the setting and the story. Many chose to play it at home by themselves as well.
That's all I can think of for the moment - apologies for the essay-like length :)
Good luck and have fun.
I'll keep an eye out on your blog to see how you get on!