Rocksmith+ - Rocksmith builds off of the fundamentals of music games like Rock Band and Guitar Hero by offering fundamental lessons in actually playing guitar.
Machinarium - Machinarium is independent puzzle / adventure game by Amanita Design
Frets on Fire - Bonus content.
Seekers Notes - Seekers Notes is a Hidden Object, Puzzle, and Single-player Point-and-Click video game with adventure elements developed and published by MyTona.
Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
Rescue Lucy - Rescue Lucy is an Adventure, Hidden Object, Puzzle, Point & Click, and Single-player video game developed by Starodymov and published by OtakuMaker.