Explore jungles, find artifacts, and discover the Lost Ruins of Arnak! Players lead rival expeditions to a newly discovered island. Through a unique combination of worker placement and deck building, each expedition attempts to uncover the lost islands secrets. In addition to traditional deck-builder effects, cards can also be used to place workers. Decks are small, and randomness is heavily mitigated by the wealth of tactical decisions offered on the game board. Building a solid resource base will be essential. With a variety of worker actions, artifacts, and equipment cards, the setup for each game will be unique, encouraging players to explore new strategies to meet the challenge.