Read about Magicians, a game that relies on player-created narratives. I realize this kind of crosses over with Week 2's Mobile Apps idea (Dragon Dictation or similar app needed), but the game design sounds great.
So what happens if one of the players sticks to limited actions and doesn't really contribute to the narrative as much as others? Well, the way Kyle Simons designed this game is so that at least that player is still practicing the target language [Korean]. I see Differentiated Instruction (by process/activity) built right into this, so check it out!
Latin Teacher magisterp.com MOOC III Week 2 Artisan MOOC III Week 4 Collabrateur
It seems like this game is for face-to-face play, with everyone using a smartphone to check their "spell casting"? Is this correct? Are there any links that explain the actual gameplay?