The Psychonauts Fig campaign is doing well so far. It's currently nearly 75% funded with 31 days left to go. So, there's plenty of time to back it if you haven't. If you feel like playing a social media game, Double Fine has set one up for the campaign, which is a neat new twist on their social media campaign from the original Psychonauts which used Friendster and Myspace (remember those relics of the internet from 10 years ago?), this time using modern social media like Facebook, Twitter, Tumbler, Vine, and YouTube and combining them with achievements.
Although, unlike usual video game achievements, you actually get tangible rewards for playing this game. Once enough people hit a goal, everyone who follows the campaign will get fun stuff like this retrospective, which was the first goal hit. The next goal is previously unseen concept art from the original Psychonauts. The social media game is a completely optional part of the campaign, but if you want to join in on the fun, join the PSI Cadets.