TurretIO

TurretIO is a Tower Defense game where you win by writing code. Control your turrets through programming their behaviour and defeat the invading slimes. There are 8 exciting levels which introduce various coding concepts. TurretIO is the perfect game for a beginner programmer to learn, while still having fun. 

Your code is written in a Python-esque programming language, with support for all the functionality you might want to use, such as looping and functions. If you need help with the syntax, you can look at a Python syntax cheatsheet, as the syntax is very similar.

If you are interested in the source code for the game, you can find it here.

Music credit goes to Kai Engel, for the copyright-free track "October".