Space Construction Vehicle from Starcraft 2.
The SCV (Space Construction Vehicle) is the Terran worker unit. It harvests resources, constructs buildings and can repair all Terran mechanical units and buildings. As a building is constructed, the SCV must remain at the site until complete, and if killed, the building’s construction will halt. Repairing costs about one third of the initial cost (in Minerals and Vespene Gas) but varies slightly depending on the target unit/building.