Sentinels of the Multiverse is a co-operative card game of superhero skirmishes. And right now it's on sale for the low, low price of £1.99 / $1.99. That is, as the proverb goes, cheap as chips.
The game is all about building up a team of comic heroes and taking on the bad guys. Its got some pretty simple mechanics, but they combine together to create a surprisingly deep experience.
The base game contains everything that comes with the physical version, and there's a whole bunch of extra content that's been added since the game came out a couple of years ago. What I'm saying is there's a very real danger that this one could become a compulsion.
So if you're looking for a game where superheroes punch super villains but it's all cards instead of actual punching, you could do a lot worse than following this link right here and grabbing the game while it's on sale.