Gallery of the Day8 Great Games You Can Grab Cheap in the Steam Summer SaleGallery of the Day - RSS 2.0
Portal 2 - $1.99
Valve's first-person puzzler is well known for its great writing, challenging puzzles, and amazing voice acting. The return to Apeture Science not only featured the return of GLaDOS (voiced by Ellen McLain), it added Wheatley (voiced by Stephen Merchant) and Cave Johnson (voiced by JK Simmons). It even offered up a cooperative mode for you and your friends to try and solve puzzles together. If you haven't played the first Portal game, you can grab a bundle of both games for just 24 cents more ($2.23).