If you haven't played Universal Paperclips, now is the time.

I have bee playing Idle Fantasy lately its effectively Runescape in idle form.
https://f-droid.org/packages/com.tristinbaker.idlefantasy

Another one is Idle Defrag for that 90s HDD defragmentation nostalgia. Although that one is no longer on the play store :(

I like Antimatter Dimensions and Exponential Idle

Not quite what you asked for but I quite liked Kittens Game.

Collect the Cookies!

Is an "idle-ish" swiper, with heaps of upgrades.

https://f-droid.org/packages/nodomain.collectthecookies/

The only thing I have that might fit that is Endless Sky, on a certain level. Run missions or trade to get money to improve your ship to run missions or trafe to get money to build a fleet to... You get the idea.

It's not made specifically for android but it seems to work well enough if you just play in horizontal view:
https://sh4dowsand.itch.io/terraformental
You can use the Mitch app to download the web version of the game and run it offline

It's honestly one of the best games i've ever played, just by sheer dint of how well the gameplay is designed. It's such a great way to add flavour to a text-based game!

Literally just started playing "earn to die" a few hours ago. I think it fits your bill.

There is A Dark Room

Scritchy Scratchy also has a mobile port.

Melvor Idle has a mobile port, but it's more of a waiting idle game.

I played a game called "The Tower" that was a tower defense idle game, but its a mobile game that pushes microtransactions.

Breakout 71 (available on F-Droid) is awesome and is like a souped up version of the ball bounces on paddle to break blocks game. I particularly enjoy the way it controls, when you let go it autopauses the game and unpauses when you click on the screen again. There are different upgrades that you get every round and some of them can get out of hand very quickly!

Unciv is a FOSS recreation of Civilisation V and has an Android version available on F-Droid, it looks pretty neat if you like that sort of game!

And of course, you can always install Retroarch and a frontend (e.g. ES-DE, RetroHrai!, Daijisho, that last one being closed-source while the former two are FOSS) to emulate retro games and, depending on your phone, you can emulate up to Switch! I personally enjoy playing 3DS (horizontally) and GBA (vertically) on my phone. You might also like Lemuroid, which is an emulator that is configured well OOTB but less flexible than Retroarch.

cifi is probably more idle than you want, but it's good for an idle incremental.

Obelisk Miner is more a clicker, but reasonably fair to play with little or no micro transactions.

Idle kingdom clicker building out your kingdom and exploring the maps was pretty fun. The grind gets pretty extreme in the later worlds though.

Super toss the turtle adds a prestige system to the classic flash game.

Dungeon Defense is like 2 bucks, and is a pretty fun one.

Ingress? It's more an AR game. Gets you out. Pokemon go.