Best Mobile game

Hoplite. It's a criminally unknown game, but it's a clever mix of strategy and turn-based roguelike elements. You play on a procedural generated hex grid and have to make careful moves to eliminate your enemies and go to the next depth (level). You have some abilities available to you as well, and for a one time purchase of $2 you get access to a challenge mode with countless levels, but the free version on its own is great.

Highly recommended