It's not often that a puzzle game transcends the relatively tight boundaries of its genre to try and tell a larger story, but that's the idea behind Fallen Tree Games' Quell Memento. The only character is an old man, sitting idly in his ramshackle house, trying desperately to hang onto his life's memories. As you play through the game, the puzzles unlock his memories by thematically mirroring the objects inside the house.