This is not a $15 game. No tutorial or help, nothing is explained. Limited minimap, limited tech tree, no story. Random generation can put the enemy spawner right next to the ship and you can not destroy it.
Starcraft Remastered is $15. That game has 3 faction with their own units and tech trees, a story, and a lot more. If you are looking for a RTS buy that instead or some other game.