 Factory simulation games typically involve the efficient conversion of resources into production through a combination of manned workforce and automated systems.Some of these are closer to business simulations, where the player is challenged to make products in a cost-effective manner to compete with other virtual competitors, such as in "Big Pharma" where players manipulate raw chemicals into new pharmaceutical drugs).Other games are based on open-world survival games, with the goal to build enough parts from raw materials on the planet to escape, such as in "Factorio" and "Satisfactory".