If you find yourself needing an online diversion plus have the keyboard platforming skills and a heap of patience, we'd advise you to spend some of your weekend with Don't Look Back.
We don't want to spoil too much for you, but as one may be able to glean from the title, Don't Look Back's title is an order required to finish the game. If you're familiar with the myth of Orpheus and Eurydice, you'll soon learn why this is so critical to reaching the end.
A good blend of lo-fi stylish graphics, interesting play mechanics and somber tone, Don't Look Back can be played locally if you've got a commute with laptop in your future. Good stuff.
Play Don't Look Back [Kongregate]