Looks simple, but actually super fun - Enyo

Enyo is a greek goddess of war, so you'll get the idea of the game pretty fast: it's a roguelike combat game with a Greek artstyle.

Instead of waving swords or throwing daggers, you let the lava do the job. You can either push or pull the enemies to the killing lava or the spiky walls. The tutorial looks easy, but the actual gameplay is actually quite challenging. The enemies move every turn, which sounds common but actually makes things so much harder. At some point, it even feels more puzzle than a roguelike.

(Even level 1 took me several tries.)

I guess that's all I have to say about this game. You'll have to try it yourself. Pay attention to the time cause you can easily spend 30 minutes playing it without noticing.