45		Farming Simulator 2013 (Windows, 2012)
45		Agricultural Simulator 2013 (Windows, 2012)
44		Agricultural Simulator: Historical Farming (Windows, 2013)
44		Ports (Windows, 2011)
43		Agricultural Simulator 2011 (Windows, 2010)
43		Evolites (Windows, 2010)
43		Disco Tycoon (Windows, 2010)
43		Der Planer 4 (Windows, 2010)
43		Farming Simulator (Windows, 2010)
41		Professional Construction: The Simulation (Windows, 2016)
41		VR: The Diner Duo (Windows, 2016)
41		Vacation Adventures: Park Ranger 4 (Windows, 2016)
41		Professional Farmer 2017 (Windows, 2016)
40		Der Produzent: Die Welt des Films (DOS, 1996)
40		Car Thief Simulator 2017 (Windows, 2017)
40		Marco Polo (Windows, 2018)
40		American Dream (DOS, 1996)
40		Wild West Saga: Idle Tycoon (Windows, 2018)
40		Albert Lasser's Clearing House (DOS, 1995)
40		Aquarium (Windows, 2000)
40		Search for the Titanic (DOS, 1989)
40		Rags to Riches: The Financial Market Simulation (DOS, 1993)
40		Wall $treet Trader 2001 (Windows, 2000)
40		Marco Polo (DOS, 1995)

Notes: Games similar to Circus World, Games like Circus World, Excalibur Publishing Limited, Windows, Simulation, Managerial, Business Simulation, 1st-person, Circus, PC, Game Similarities.