OpenTerra - Territorial conquer

Spawn: click land to claim your starting nation. Attack: left click enemy or neutral land you border. Build & diplomacy: right click opens a ring menu — on your land you build, on a rival you can ally, donate or betray. Boats: click land across water and your troops sail there. Ports raise your fleet cap. Economy: the worker slider splits your people between gold and army. Win: hold 80% of the land or be the last nation standing.