Undeniably SimTex' most underrated game, 1830 is a complex and faithful PC conversion of Avalon Hill's popular boardgame.

1869 is a fun 17th century trading game that is similar to its contemporary High Seas Trader but with more emphasis on trading and planning routes than on naval navigation.

Atlas is a historical business/discovery game by Japanese developer ArtDink, famous for A-Train railroad simulation series.

Sunflowers' first game, Aufschwung Ost is a nice political business simulation/strategy game with a touch of SimCity.

Automotive Conservation is an interesting but far too simplistic computer board game designed to promote auto maintenance.

Baron: The Real Estate Simulation is, as the name suggests, a simulation of the real estate industry.

Becher Bar is a fun bar simulation game similar to Pizza Tycoon, except you are managing a bar rather than a restaurant.

Computer Acquire is a faithful translation of AH's famous boardgame of the same name.

The Corporate Machine (TCM) is an excellent sequel to Entrepreneur, one of my most favorite business sims.

Corporate Pursuit is an average business simulation that tries to simulate the IT industry, but does not quite succeed due to dubious economic/pricing engine, and balan gameplay.