With Construct 3 we can build professional 2D games. The free version is entirely online, can be accessed using the school Google account and has enough functionality to make fully working games of any type.
To get started we can make a simple version of a platform game or a top down shooter game.
Examples below are
a top down shooter: Birdy Fun: Poo on the People (unfinished game)
a platform game: Greedy Sheep (unfinished)
top down shooter: Alien Blaster
Birdy Fun and Alien Blaster seem to be completely different games, but they are both similar in design but with different skins.