I picked it up on fdroid, but I have only played it a bit. I found the Android UI a bit opaque.

Yes! I finished the original one. Slowly working my way through the new campaigns. Great on Android.

I also built this very silly schematic for turning scrap into EVERYTHING! https://shkspr.mobi/blog/2022/02/mindustry-scrap-to-everything-schematic/

I played it several large updates ago before there was a more robust tutorial system. I found it quite enjoyable to okay coop with friends, ramps up the engine building, along with a good measure of other player based chaos.

I played the open-source variant on linux for a time and liked it so much that I bought it on steam. There you get the newest betas and mod workshop support.

It’s quite a time killer. I like it.