

I’m afraid that Luanti is one of the best alternative to minecraft. If there where more devs, we could create various ecosystem and gameplay. Also improve control on the mobile app.
Another game would be Veloren but there is no building and survival. It’s a RPG so not really a minecraft clone. And i don’t think they created a mobile app.
FDroid is an alternative app store where its main focus is Free (libre) software. Free in the sense of freedom. They have also strong focus on tracking. Under app, you have “anti-feature” that tell you that part of its code is not opensource or that there is sensible data. :)
You should visit their website. ;)
Here is some info from their website :)