There are two options for co-op play in SpellForce 3: co-op campaign, and playing in the multiplayer against A.I. bots.
Co-Op Campaign: Up to three players online or via LAN can team up to play through the entire campaign together. The host can determine what the players can do within the game, for example, putting one player in charge of building , and the other controls army units, and all campaign progress is kept with the host.
Multiplayer Co-Op: Up to three players online or via LAN can form a team against A.I. controlled opponents. This is also known as "comp stomping."
SpellForce 3 goes back to the roots of the SpellForce saga. The story takes place before the acclaimed SpellForce: The Order of Dawn and the players becomes a part of a rich high fantasy world named Eo.