Capture the Opal is a mode in Minion Warfare and Minion Warfare 2: Warmageddon. In this mode, the Minion and Shockbot/Mutent teams must infiltrate the opposing team's base (on opposite sides of the map from each other). Inside each base is a Magic Opal.
Players have 30 minutes to steal as many Magic Opals as possible. Players must invade the opposing base and steal the opposing team's Magic Opal and deliver it to their home base. If the player carrying the Opal is defeated, their teammates will have 25 seconds to grab the dropped Opal. If they do not grab it in time, the Opal will be returned to the base. All players can see the location of their team's Magic Opal via a beacon that will stretch above any obstacles blocking your line of sight.