Pretty fun little indie game with good gameplay depth and just the right amount of challenge to keep you coming back if survivor games are what you're into. The annoying energy/cooldown system and some microtransactions keep this from being a better game, though.
Still quite fun for brief play sessions.

fun time waster for when you have like a half-hour to kill

Vampire Survivors (developed by Supercell)

I don't know what my thing has been recently with playing roguelike mobile games, but I gotta stop. Anyway, it manages to be a pretty basic and fun topdown roguelike with some cool mechanics and pressure to pursue builds (which is good for a meathead like me who just takes whatever abilities seem attractive at the moment). However, take this, and bake it into a confusing jungle of mysterious currencies, convoluted menus, and freemium game practices.

Best mobile a.s.s. game and vampire survivor-methadon.

Now after playing it about a year, have milked all the freemium potential out of it.
Tried ignoring all of the random additions such as fishing or Spongebob minigames. Now that the progression has slowed down too much and I am not really getting my dopamin kicks out of it anymore, It leave this app companion behind, on lvl 65.

Embarrassingly mindless gameplay even for a game meant for killing time. Also addicting, which is not a good combination to have