We’ll attach some useful links and documents here as the competition develops, so watch this space!
MIT App Inventor allows anybody to build apps that impact the world. The platform is an intuitive, visual programming environment that allows everyone, including children, to build fully functional apps for smartphones and tablets. If you are a beginner you can use their tutorials to have your first simple app up and running in less than 30 minutes! There are also lots of other resources available on their website to help you create more complex projects
OpenGameArt.org provides free/open source game developers with a library of high quality, freely licensed art to use within their projects. You can find lots of useful things from concept art to music, textures and 2D and 3D art which can be used to help with both Game Idea and Game Development entries. Make sure to check the FAQs and licences of the artwork/music before you use it so that you can appropriately credit the author(s)!
Piskel is a great free tool for creating 2d animations and pixel art for game development. All new game developers need a way to make animations and sprites for their games, and Piskel allows you to do this for free! There are also tutorials available online to help you get to grips with the software.