Alien Frontiers is a worker placement game where the win condition is having the most victory points at the end of the game. At the start of each turn, a player rolls their dice which represent the player's exploration ships. Depending on the result of the dice roll, players can choose to place their dice on a certain facility on the board and gain its effects.

For example, the image below shows a player has gotten a consecutive dice roll and is allowed to utilize the Raider's Outpost which allows the player to steal a total of four resources from any mix of players or an alien card from only one player.

Alien Frontiers Official Rules (PDF)