Nival is bringing Prime World ( to North America and Europe, according to “Inside Mac Games.” The game is cross-platform, with features available on Facebook, Mac, and Windows PC as well as iOS and Android-enabled platforms.

Here’s how “Inside Mac Games” describes Prime World: “Prime World combines elements of social and strategy games, challenging players to engage in both competitive PvP battles and collaborative castle-building sessions.”

Nival will unveil Prime World for the first time in North America at the the Electronic Entertainment Expo (E3) 2011, June 7-9. Pricing hasn’t been announced.