In the following escape rooms in Jacksonville (NC), you must purchase the entire experience at once. You'll only play with the members of your own team and won't be paired with strangers.
The only requirement is to meet the minimum number of players for the room — the price is usually set for the room itself, though it can also depend on the number of players.

When King’s Low Tide reveals the wreckage of Blackbeard’s long-lost ship, a race against time begins. Legends say his treasure still lies hidden within the shattered hull—but the sea is already turning.
Legend is told of a mysterious ship that appears off the coast of North Carolina every year at this time.
You are in the room where Barry Miller was doing his experiments and trying to cure the zombies he has made. He has everything he needs but now he is infected. You have one hour to make the cure before it self destructs.