This app was mentioned in 31 comments, with an average of 1.87 upvotes
There is a free ad-supported version. The gameplay is very Binding of Isaac but not nearly as fleshed out as BoI. All in all a damn fun game, especially for a dollar!
Free version: https://play.google.com/store/apps/details?id=com.revampedpro.theslimekingtower
If you like Binding of Isaac, you have to try out The Slime King's Tower. With the upcoming Update, that is gonna be the game that will keep me busy from time to time. I haven't find a better BoI clone so far.
Another really fun game similar is called The Slimeking's Tower. Enjoyed it a bit more than Soul Knight due to actually being a twin-stick instead of auto-aim.
https://play.google.com/store/apps/details?id=com.revampedpro.theslimekingtower
The slimeking's tower is pretty fun. If you've ever played or seen Binding of Isaac it's a very similar style. It's not too hard that you could just easily jump in at any time
Beep boop, I'm not a bot but linkme seems sleepy.
https://play.google.com/store/apps/details?id=com.revampedpro.theslimekingtower&hl=en_GB
With the current crashlands alpha going on (i wish i had a key tho) i checked out the rest of the butterscotch shenanigans games and towel fight keeps me pretty busy so far (until slimekings tower going to be updated [this friday btw])
Orcs & Elves would be my top recommendation from the below. May update/edit the list with some more, if I think of anything.
First Person (Turned based)
First Person (Real Time)
Isometric (Real Time)
I've been playing this lately, fairly simple rogue style game.
There's Slimeking's Tower. Bit more like Binding of Isaac, but is pretty fun. There's also a paid version.
https://play.google.com/store/apps/details?id=com.revampedpro.theslimekingtower
The Slimeking's Tower https://play.google.com/store/apps/details?id=com.revampedpro.theslimekingtower
Have you heard about The Slimeking Tower and Towelfight 2?
Both seem to be heavily inspired by BoI. Towelfight also has a nice sense of humor.
Then there is also Heroes of Loot but I can't tell you anything about it as I haven't bought it yet. I played the free version of it but that one doesn't seem to be as up to date as the paid version.
Edit: Sorry, I somehow missed the permadeath part. Towelfight 2 doesn't have that but you could still give it a try. =)
The Slimeking's Tower update came out today introducing endless mode and much more so this is the most enjoyable game for me right now. Other than that, i like Towel Fight 2. Butterscotch Shenanigans games are all quite polished and enjoyable but the game i am waiting the most right now is Crashlands. I can't wait for this, i love Don't Starve and Crashlands will be the best DS like game on mobile it seems.