Coffee Shop Tycoon - Coffee Shop Tycoon is a Strategy, Time-Management and Single-player Simulation by Riff Studios.
OpenTTD - An open-source clone of the classic game ...
Railroad Tycoon - Railroad Tycoon is a very first installment in the series of Railroad Tycoon that was released in 1990 developed by MPS Labs and published by MicroProse.
Simutrans - Simutrans is an open-source transport simulator.
Pocket Frogs - Pocket Frogs is an Addictive, Hunter, Breeding, Training, and Single-player Simulation developed and published by NimbleBit LLC.
Transport Tycoon Deluxe - Transport Tycoon Deluxe is a Business Simulation developed by Chris Sawyer and published by MicroProse.