Crossplay

Is AI War: Ancient Shadows crossplay?

AI War: Ancient Shadows is only released on one platform, so there is nothing to cross-play with.

Steam's own store page lists cross-platform multiplayer for AI War: Ancient Shadows. That confirms it exists, but not which platforms pair up.

Ancient Shadows (or AS), the fourth expansion for AI War, the expansion was released on October 19, 2012 along with the version 6.0 of the game. The expansion features:[17] A whole new kind of human player. It's now possible to control champions alongside the main fleet, or to have another player control just one single massive ship. Several new sub-races dwelling in the backwater parts of the galaxy for your champions to interact with. Modular fortresses. 9 new bonus ship classes. 3 core AI guard posts and one new minor faction. 2 new AI types. 2 new map types. 98 minutes of new music by Pablo Vega.