This app was mentioned in 12 comments, with an average of 1.58 upvotes
https://play.google.com/store/apps/details?id=com.kongregate.mobile.tinydicedungeon.google
I am absolutely sure I know the game you are looking for as I played it, too, but I have a wrong name associated to it, it is NOT the game I linked, but that one is kinda nice, so there you are. Have fun. I might link the right game later, if I will ever find it again...
Is it perhaps Tiny Dice Dungeon? I don't remember it too well, and I'm especially unsure about the cacodemon part, but I vividly remember it as a pretty good 8bit game which involves having your own team of monsters, rolling dice as combat mechanic, and having some form of summoning.
My bad.. It's called tiny dice dungeons and i just realized this is table top and not game design but all the same good luck with the game!
Enjoy the vacation then, not games like always. Maybe Tiny Dice Dungeon
Tiny Dice Dungeon is the one that i most played
still a lot of combat, but check Tiny Dice Dungeon