Buildbox is a drag and drop engine, making it easy for beginners to pick up. There are many tutorials available to help get you started.

Buildbox has 20+ different game templates including templates for platformers, racing games and Flappy Bird clones.

You can create simple particle effects with control over gravity, color variance and blend modes.

You can add banner and interstitial ads from multiple ad networks, including AdMob, RevMob, Facebook. They can work with Amazon's, Microsoft's, Google's and Apple's app stores.