Overdungeon

Oh man, what a game Overdungeon was. Apparently abandoned in development for about three years, and only just recently picked back up. I am not sure if it's actually a mobile game, but it feels like one, and has an auto-play button, so it might as well be. And I could've sworn the character I happened to play had the same character model as those dozens of hentai shooter clones on Steam. At the same time, for about 10 minutes, I was having so much fun, I was laughing like a maniac. Then the game ended.

Despite being out of Early Access, Overdungeon feels very much unfinished. There are 4 characters, basically no unlockable content, only 3 floors, each having less than ten encounters (battles / rest points / stores / etc.) It is also unbalanced, as I beat the game easily on my first try on the hardest difficulty. But, I have yet to mention what it actually is.
So, Overdungeon is off the heels of the Roguelike Deckbuilder craze, which I still haven't explored much. You choose a character, get some starter cards, get to upgrade those cards, get some passives, get rid of some cards, and try to build the strongest synergy in your deck possible. Standard stuff. Where Overdungeon differs, is that you're on a sharp time limit of a few seconds per card, and there is always a battle happening between your summons and the enemy's on the battlefield located between you two. A lot of cards can place buildings on the field or summon units, which will autonomously do their thing.

While there isn't much content to the game, there do seem to be a lot of synergies. Animals created on the field can trigger traps, which can summon more animals. Cards that gain power every time they're played. And what won my game, was a passive item that removed the effect from cards that made them not be shuffled back into the deck, allowing me to play a card that played all the cards from my hand, and then clone that card's upgraded version that played all the cards from my hand twice. Add in some card draw cards, and I ended up playing more than 20 cards on some turns, instead of the default 2. Fun, but just briefly, as it was far too strong.

Honestly, the production quality, and, well, almost everything, about Overdungeon isn't great. I love the absolute mayhem that was happening on screen in the later stages, and I caught a glimpse of some bosses actually being fairly strong, so I think there's potential in balancing the late game by just making both parties ridiculously overpowered. Sadly, I don't have faith after all this time (and because it's a mobile game), that they will fix all the problems with the game and also add a good chunk of content. It was fun for the hour or so that I played it, but I have no desire to replay it, and I couldn't give it a serious recommendation.