Impulse is a quick-playing 4X (explore expand exploit & exterminate) game set in space with the game board being composed of cards that have actions on them Players also have cards in hand & in addition to featuring one of ten possible actions these cards have a color (red yellow blue or green) & a size (1 2 or 3 as indicated by the number of icons on the card) Each card also has six edges & these edges connect adjacent cards in the hex-shaped playing area The cards in the playing area start face down with each player controlling a card (their Home) on a corner of this area Each player has two transport ships in the center of his Home card & a cruiser on an edge Cruisers are used to patrol sectors of space & destroy opposing transports while transports let you activate sectors that you enter On a turn a player adds a card to the Impulse from his hand then (optionally) performs an action for a tech in his playing area then (optionally) performs all the actions in the Impulse then draws two cards & adds them to his hand The Impulse is a line of cards shared by all players that changes turn by turn as players add cards to it & as cards fall off once it reaches maximum size Thus players need to feed the Impulse with actions that benefit them more than opponents but that&s easier said than done When you perform actions – whether from moving transports to them or using the Impulse – you can boost them by having minerals of the same color or lots of transports Each action has a single numeral on it eg " Command 1 ship for one jump" or " Build 1 cruiser at home"; when you boost an action you increase that numeral Players score points by destroying enemy ships (one point per ship) by controlling edge spaces on the central card (one point per edge) & by taking other actions via cards The first player to score 20 points wins!