The upcoming downloadable puzzle game Quantum Conundrum is one of the best downloadable titles to come out of E3. From the creators of the famous game series Portal, Quantum Conundrum is a completely new puzzle game. Able to shift between different dimensions to suit your purposes to solve your puzzles, like fluffy dimension, heavy dimension, and reverse dimension. One of the beautiful things about this game besides the amazing visualization and the thought-provoking puzzles is the physics part of the game, which allows players to solve puzzles in various ways thats not the same every play-through. Left on your Uncles doorstep for the weekend, you learn your uncle is a scientist and has gone missing, and you must navigate through this house and scientific world to find him. Look for this game hopefully sometime this summer.