Here is a simple game I developed with Construct 3 and published on Google Play. The game is called Scribbled Invaders, which uses simple hand drawn graphics for a space invaders like game.
You can find the game at https://play.google.com/store/apps/details?id=com.cygriongames.scribbledinvaders
I like your art. What type of software you use to create the art if you dont mind me asking?
Develop games in your browser. Powerful, performant & highly capable.
The invader sprites were hand drawn on grid paper then scanned. The other artwork was found doing a simple search on sketched aliens and hand drawn font styles.