Dominate did exist in the early years of Mineplex, but was removed for some unknown reason. I really think this removal was uncalled for because of its popularity. Aside from that, Dominate is a mini game that has two teams where the goal is to capture a small 4x4 section for as long as that team can. The longer the team holds on to the section the more points that team gets. Moreover, Dominate has special kits that allows you to express certain abilities. For example, the Mage kit allows a person to throw ice or fire when right clicking with a sword. Here is some footage of the game from the perceptive of Parker Games while he is prank calling people.