Like the original game, Thrillville: Off The Rails is a strategy and simulation game about being the park manager of all of the Thrillville theme parks. The game allows the placing and deletion of attractions and buildings such as flat rides, food and drink stalls, bathrooms, games, and also contains various minigames to play both in the park and in the game's "Party Play" mode, along with editing and allowing the players to ride their own roller coasters inside each of the Thrillville theme parks.