This app was mentioned in 8 comments, with an average of 1.50 upvotes
https://play.google.com/store/apps/details?id=com.gryn.LordMaster
I last played this 6 years ago but it's the closest I found at the time. Definitely not on the same level as Mount & Blade though.
Not sure if that's one of the games you were referring to being outdated.
Check out Lord&Master.
It's more "Mount and blade lite", and it's quite old, but it's completely free.