Looty Dungeon is a glorified Crossy Road where you move forward and try to complete quests to get coins in order to buy more characters and keep doing that forever. At least in this version, the different characters have different abilities, but the game doesn't control well, the progression curve isn't fun and I don't have much positive to add about it; Needless to say, I haven't played it much.
My first big issue with the game is the controls and core gameplay loop. The game is in real time - and the dungeon behind you is collapsing - so you always have to move forward. Enemies, traps and other hazards are always active, so you have to constantly move around. This would be fine if the game controlled well, but the swipes to move in various direction felt flaky at best, frustrating at worst. This game would've worked much better as a turn-based thing where you moved and then the rest of the world updated, giving you time to think about what your next step should be. They make it a bit worse by having some characters have 'tap and hold' abilities that I triggered by mistake or just couldn't get off when I tried to.
There seems to be a vast collection of characters in LD, most of which you'll unlock by paying 500 gold and getting a random one. They seem to have varied HP levels - which you lose very quickly, and then are offered to revive in exchange for coins or viewing a video, which makes me doubt about the balance of the game - and special abilities. The game tries to show you what they are with little animations, but it's tough showing certain innate abilities; like the ninja being sneaky and undetected by enemies, even in-game it's tough to know what disables this ability; Number of steps taken? Whenever you attack? The game doesn't say. Some classes are better than others for certain tasks, like killing specific bosses, or completing certain quests. Quests are how you'll make most of your gold. You can only get 3 per day and otherwise you'll get almost no coins to buy new heroes. Some quests are easier than others, and they're all more or less things that you'll do during gameplay.
What really turned me off Looty Dungeon - even if I was kinda bummed out about it already - was the fact that I got a duplicate character when rolling the expensive 500 coins random number generator. All my hard work for a 'Try Again' message? I just uninstalled the game, that was it.