Playtech's X-Men slot is a slick-looking 25-payliner that reflects the complexity and depth of one of comicdom’s more convoluted storylines. Nearly one dozen good guys (you know, Cyclops, Nightcrawler, Wolverine, Storm – that lot) and bad guys populate the reels with simple enough basic gameplay.

But bonus rounds are where things get complex. To enter the feature round, for example, requires lining up any combination of hero symbols in an X (for X-Men, get it?) on reels two through four. (If you’re not 100% up as to who’s on what side these days, Playtech designers have helpfully color-coded the characters: Good guys have a blue background, bad guys are red.)

Once in the “Heroes vs. Villains” free spins feature, you may actually be playing in “villain mode” (allowing eight spins) or “hero mode” (potentially allowing infinite free spins). To make it more complicated, the slots player can actually switch from one mode to another repeatedly. Marvel slots are some of the most popular slots around and X-Men is one of the best by far.