Corporation is a good Sim-Tower clone - Review

Maybe you remember Sim-Tower published by Maxis (now EA) in the 1990s.  While the original came on floppies or CD in a box and cost money.  Corporation inc from Armor games is available online for free.  This game allows you to build and manage your corporation's business & skyscraper.  You hire staff, build the office, research new positions and facilities.  You ensure IT is hired and equipped and that the janitorial staff cleans up at night...