Mode 7 announces Frozen Synapse 2, calling the upcoming sequel "an open world tactical game" and saying it will come sometime this year for Windows, OS X, and Linux. The Frozen Synapse 2 website is online where you can see a screenshot and sign up for future updates. If this seems vague at the moment, it is, or as they describe it, "enigmatic." We shouldn't have that long to wait, however, saying: "More details will be revealed over the next few weeks."