itch.io

Not portable in what way? It's pretty low spec so it should work on the steam deck. There's also a version on the switch as well. 

Just not mobile, unfortunately the plugins I use aren't supported on the new version of construct so porting it to that is a big pain. I really should work on that again though.

https://boncho-games.itch.io/blitz-breaker

Currently working on the mobile ports (iOS is out pretty quick actually)

XBox One is in the works, I have a dev kit and have started tinkering with it, so it's a definite possibility.