I got into this recently playing with my brother and friend. it’s the perfect mix of tower defence and factory builder. Also trying to optimize a ammunition belts mid-wave is a kind of addictive thrill of panic I didn’t know I needed in my life.

I have Mindustry for android. I play it on a galaxy note with a stylus, do recommend.

I like the music in Mindustry also. It makes you want to take over the world by building conveyor belts at it.