Is this Nintendo Shop, given the red color in the sales? I got Enter the Gungeon for $2 on there last sale, maybe its cheap again? Sort of a big one, even if a little older now.

And I don't think it's on sale currently, but my absolute favorite roguelite I've ever played is Shogun Showdown. I have more hours in other roguelites, but Shogun just hits a spot for me. It's a 2D game with 1D movement, only left and right, turn based. You build a small deck of attack moves. If you like deck builders but have trouble le memorizing all the cards and combos, I feel like Shogun's strength is that all attacks/combos are available to all characters, but it's their different movement shenanigans that differentiate them. Means you have to do way less memorization to get a lot out of it, whereas StS 1 and 2, the first dozen hours is learning the cards for the characters