http://us4.campaign-archive1.com/?u=1f1c4d27af7e5cc7e98f7731f&id=3ceab89443

They seem to be having technical issues though on the actual gala side.

In each case the main game of the bundle is $0.99 minimum, and $4.99 will get you bonus games.

http://store.indiegala.com/index.php/video-games/trapped-dead-bundle.html
Main: Trapped Dead, $4.99: Scratches DC, Vigil, Post Mortem

http://store.indiegala.com/index.php/the-painkiller-bundle.html
Main: Painkiller Redemption & Overdoes, $4.99: Painkiller Black

http://store.indiegala.com/index.php/the-sacred-ghosts-bundle.html
Main: Sacred Gold, $4.99: Ghost Master, Dark Fall: Lost Souls

http://store.indiegala.com/index.php/the-zombie-bundle.html
Main: Zombie Shooter, $4.99: Zombie Shooter 2