Gameplay
“ The game is designed to be played with 2 to 4 players, taking turns until one wins. One player takes the role of the aliens, controlling all the aliens and monsters on the space hulk, which were a mixture of Chaos, Orks, Genestealers and other aliens from Warhammer 40,000. The alien player takes on a significantly reduced role compared with that of a Game Master in traditional role-playing games, with its sole role being to stop the marine players from accomplishing their missions.

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The other players are marine players, and each controls a squad of 5 Space Marines in standard power armour, one of whom is a Commander. Each squad is further equipped with order commands as well as equipment cards. Marines can be armed with different weapons: light weapons allow marines to move faster at the cost of reduced firepower. Heavy weapons operate in special ways, such as being able to hit all units in a horizontal line, or attacking multiple targets. “ – Wikipedia