You can purchase one of the best games to release last year from the Humble Bundle weekly sale.
For any price of your choice, you can own each of the five episodes of Telltale's: The Walking Dead. If you pay at least a dollar or beat the current average of $4.23, you will also receive Steam Keys for your downloading and collecting convenience.
In The Walking Dead, while not based off the television show but the based on the comic book series, you will play as Lee Everett trying to survive the zombie apocalypse. You won't witness society first crumble and the game will never explain what causes the outbreak in the first place, but those details don't matter.
Throughout each episode you will face extremely tough decision that drastically impacts the story going forward. Some characters will hate you; others will agree with your decisions and form a relationship. While you constant need to protect yourself from the flesh eating zombies, a crumbling, dysfunctional group of survivors refusing to work together will only worsen your chances of survival.
With Telltale planning the release of a second season, use this opportunity to play through The Walking Dead as it probably exists as the best example of episodic game releases and also competes as one of the best games to release last year.