Dungeon Maker is a fun little roguelike/strategy game I’ve been playing atm https://play.google.com/store/apps/details?id=com.GameCoaster.DungeonMaker&hl=en&gl=US You hire and level monsters whilst building a sorta dungeon with traps for heroes.

Since you mentioned Minecraft and farming simulator, both Terraria and Stardew Valley are on android, though I can’t speak for their quality or playability.

Emulators are a pretty good shout, PPSSPP was pretty great when I last used it which was a few years ago now, so I imagine possibly better now and the PSP had a decent selection of games.

You could also try Google Play Pass for a month and look at a few paid games and see if anything tickles your fancy there, but subscription service.

I’m actually playing it now! If you’ve played it before and want a bit of a change, but without changing everything (and are on PC), I recommend The Midnight Ride. Read through the mods it adds to see if it’s for you, but it all felt good to me mostly. The power armour changes are very nice for me. You can add other mods on top of this too if you wish (Fourville and Sim Settlements 2 are two I’ve added on top of as well and also recommend).