In the following escape rooms in Rapid City, 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.

In 1878 the Wells Fargo stagecoach carrying the safe called the "Monitor" was held up at Canyon Springs, WY. All the robbers were caught an hung.
Wild Bill Hickock has been murdered. You must track down his killer, Jack McCall, within 60 minutes before he escapes into the wilds of the Dakota Territory.
"What about that old abandoned nuclear silo North of the Black Hills"?
You and your friends are out exploring the fringes of the Black Hills in sparsley populated southeastern Montana. As your are photographing some of the cute prairie dogs at a prairie dog town, your friend gets bitten.