Hi.
I know Apkenv supports only very small amount of APKs files, right versions etc.
1. So first, I would like to share here my pack of working games on Apkenv. All were tested and work on N9. In my case I use Apkenv from N9QTweak app. Link:
https://mega.nz/folder/d3pXTY7B#FdxXLBdI_RsHxEeavnHVzQ
2. As second, I have a question, probably thp isn't active anymore, but why not try... I would like to know how to build your game's own library, to make that game working. In my case I would love to see Geometry Dash working. It's very simple game, jumping block and shouldn't be hard to implement (I think!). Would it be possible to create library for that like e.g. Fruit Ninja has?

Thanks in advance, regards