Blast waves of mutants in beautiful 3D environments, launch trucks at skulls on your iPad, and design complex structures to support a specific amount of weight with today's AGF list.

All app prices are subject to change at any time and without notice regardless of stated free duration. Price changes are solely under the control of the developers.

iPhone:

Stuffed or Starved ($.99 -> Free, 5.5 MB): This arcade game requires you to tilt your iPhone in order to ensure the little yellow dude doesn't get too stuffed and doesn't starve. The meter in the top corner of the screen indicates if he is too thin or too fat and, as you would imagine, you'll need to eat healthy foods to thin out and fatty foods to thicken up. The more you eat, the higher your score. The game includes Game Center integration as well.

Stuffed or Starved is available for free for a limited time. It has a 4-star rating with a total of 10 ratings.

Super Stack Attack ($.99 -> Free, 16.6 MB): The citizens of Stackville love nothing more than sitting on top of each other, but they need your help to do so. As the crane hook at the top of the screen moves back and forth, you must time your tap to drop a block directly on top of another. If you miss and a block topples, it's game over. The game features two modes, all kinds of colorful characters, and Game Center integration.

Super Stack Attack is available for free today only (08/18). It has a 3.5-star rating with a total of 15 ratings.

Mancala Kalah ($.99 -> Free, 18.6 MB): A digital version of the board game Mancala. It features the ability to start with anywhere from three to six seeds, four levels of difficulty, same-device multiplayer, online multiplayer, and Game Center support.

Mancala Kalah is available for free for a limited time. It has a 3-star rating with a total of 19 ratings.

RAGE ($.99 -> Free, 539.7 MB): This on-rails FPS developed by id Software will push your iDevice's hardware to the limits with its beautiful and unsettling 3D characters and environments. The game features three weapons to take down waves of mutants, three environments, combos, bonuses, and Game Center integration.

RAGE is available for free for a limited time. It has a 4.5-star rating with a total of 16 ratings.

RAGE HD ($1.99 -> Free, 746.9 MB): Identical to the regular version listed above in terms of gameplay, this super powered version of id's on-rails FPS features high resolution textures that are optimally viewed on 4th generation iDevices or the iPad.

RAGE HD is available for free for a limited time. It has a 4.5-star rating with a total of 120 ratings.

SimplePhysics ($.99 -> Free ,6.6 MB): A game that will put your engineering skills to the test. Each level requires you to design complex structures that are able to support a specific amount of weight for a limited time without collapsing. You're provided with a limited amount of cash as well, so you'll want to place beams only where they are necessary. The game features 11 levels, the ability to test your structure with weights or your fingers, the ability to save, load and share designs, and online leaderboards.

SimplePhysics is available for free for a limited time. It has a 4-star rating with a total of 35 ratings.

Trucks and Skulls NITRO HD ($1.99 -> Free, 69.4 MB): Launch six different types of trucks at structures in order to destroy the skulls contained within in this Angry Birds-like physics puzzle game. Tapping on the screen while a truck is in the air will cause it to pull off a stunt and eventually explode when it crashes. The game features over 230 levels, the ability to mod your trucks, a level editor, and Game Center integration.

It must have at least a three-star average rating at the time it goes free.

at the time it goes free. The app must not have been free numerous times (3+) over the last six months.

The free version of your app must not include ads.