DC is a famous US company that is one of the leading producer of comics, alongside with Marvel, also known throughout the world. Lately, Marvel has been doing slightly better than DC, but in terms of slots based on the comics, DC is as good as its counterpart.
There are two major companies developing DC Comics slots series. The first one is the prominent Microgaming. An interesting fact is that Microgaming has only two slots themed around DC comics, but they are so much well known that probably they do not need to attempt to create any more of them. These two super popular titles are the Dark Knight, famous for its progressive jackpot, and The Dark Knight Rises, its sequel. Both tell the story of one of the best known super hero in history, Batman.
However, the DC series includes many more slots than just Microgaming's products. Totaling up to 20, other DC slots are a production of NextGen Gaming, which is now a part of Canada based Amaya Gaming. The series created by NYX also includes some titles themed around Batman, although they also have several slots with another world famous protagonist, Superman.