Lines Air Adventures is a strategic air traffic management game where players oversee the landing of planes on an island with varying runway configurations. As planes approach from the edges of the screen, the player must position and manage available landing strips to accommodate incoming flights. The shape of the island changes at different levels, offering unique challenges in how to place and expand landing zones. Additionally, a collection of planes with varying capacities can be accessed, each capable of handling different amounts of traffic, providing a system for upgrading and improving efficiency as the game progresses.