It seems to me that echochrome would be the best game to play while high. Yes, I said it. It is a great game that provides a very intricate strategy. You, as the user, provide a way for the dummy to walk around in the blocks to get him to his destination. The cool thing is what type of theories the game is based from (such as relative reality). Check it out you will not be disapointed (especially if you liked portals from Orange Box).