Download of eCITY 1.5.1 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. This free software for Mac OS X is a product of Virtual Campus Lda. ECITY for Mac lies within Games, more precisely Simulation.
From the developer:
eCITY is a free-to-play city simulation game where you are challenged to solve different engineering issues. Eight scenarios are available, including topics such as energy distribution, pollution, networking, transportation, natural disasters, and many others.
You may want to check out more software for Mac, such as Fish Tycoon, OOTP8 or Aqua Park Tycoon, which might be related to eCITY.