Drone (StarCraft II)

In StarCraft II, drones are rallied separately from other units with the "G" key, which can be combined with automine. Unlike their predecessors, they no longer have a ranged attack.

Unlike most other zerg ground units, drones do not gain a speed boost on creep.

When Kerrigan reaches a certain level in the Heart of the Swarm campaign, drones can be morphed in pairs if Kerrigan selects Twin Drones.

Development
In earlier builds of StarCraft II, drones were not required to build defensive structures, such a role having been taken over by the queen. Drones have regained their ability to create defensive structures.