Developer Pugstorm is offering a free play weekend for its open-world survival game, Core Keeper, on Steam. The game, launched two years ago, allows solo or cooperative play with up to seven friends and features survival tasks like resource harvesting, crafting, and base building. Players can explore diverse biomes, level up skills, and engage in life simulation activities while combating legendary titans. The free play weekend ends at 6 PM BST on October 12, and players' progress will be saved if they decide to purchase the game afterward. Core Keeper is currently available at a 40% discount, priced at £9.59/$.99, down from £15.99/$.99, until October 22. The game has a 'Very Positive' review score of 94% on Steam.