PixelJunk Monsters is one of the original tower defense games that was caught in the early Indie craze. It's been ported to a ton of systems after it's initial PS3 launch and has been in a handful of Indie Bundles as well as getting a Wii U port. Recently it's creators, Q-Games have dropped a Kickstarter for an entirely new version of PixelJunk Monsters that's free to play on mobile called PixelJunk Monsters Duo.

"Fans have been clamoring for the return of PixelJunk Monsters and we've been listening! We want to bring it to them and hopefully to a whole new group of players as well! Allowing anyone to pick up and play Monsters on their phone is one of the best ways to do that.

We've decided to make the project a free-to-play title in order to make it easier to keep new stages, islands, monsters, and other features coming as fast as we can whip them up. But it's going to be a big undertaking--and we need your help!

One of the coolest things we have planned is the introduction of card and deck based gameplay, used to place towers, bombs, special effects, and more! Collect cards to unlock more powerful items and defend the Chibis against tougher and more dangerous monsters."

I don't think i've heard of a Kickstarter to fund a free to play game but if you are a fan of PixelJunk Monsters and want some amazing swag there are a lot of backer rewards for you. Very excited for a new PixelJunk Monsters game and I hope the free to play aspect doesn't get in the way of it being great!