The original Risk of Rain is a 2D action platformer with some roguelike elements thrown into the mix. Ever since its release it has garnered a massive amount of positive reviews, and for good reason as the gameplay itself is just pure fun. As such, it probably wont come as much of a surprise to hear that Risk of Rain 2 has been announced.
What might come as a surprise, however, is that Risk of Rain 2 will be done entirely in 3D! Its still early in development so all of the details are a bit shaky, but the important thing to keep in mind is that it will follow the same sort of ideals as the original. In other words, expect plenty of fast-paced action with some of your favorite characters from the original.
If you would like to follow the developers and observe how Risk of Rain 2 is shaping up, you'll find what you seek over at the official blog. On the other hand, if you're wondering which characters will be making it into Risk of Rain 2, or how exactly the multiplayer will be handled, you should probably visit the recently posted FAQ.
Since I can offer you very little else in terms of useful information, mostly because there isn't much available right now, allow me to send you off with a bit of extremely early gameplay footage. Just don't judge its quality too harshly since its obviously not finished!