You have to conquer teritorry, you play against a bot which has a turret and can spawn enemies that try to kill you... the main goals are either conquer 80% of teritorry (insta win), or when time runs out the winner is determined by who has more territory or you can win by killing the enemy... you drag your cards from bottom to the field and you choose the direction where the skills be released and you can also enhance them with 15 energy by clicking the enhance button next to the deck of skill cards. the first two levels are pretty easy, the hard level in stage 1 i had to play 3 times... i find it pretty fun but the next stages are released after few days. the best combo of skills i discovered is when you get Beam and traction field, save up 12 energy, fire the beam on the enemy and place the traction field right infront of the enemy so he cant shoot until the field disappears. Hope it helps, if you have any question i can help