Skyscraper Simulator (Steam key/Region free).

http://store.steampowered.com/app/252910/
You´re a constructer and you’ve specialized in the "bringing up" of skyscrapers. Due to your specialization over the years you constantly get new orders for higher and higher skyscrapers in town. Within your responsibilities are the planning, the supply with construction materials and the worker management.

In the beginning you are dealing with multi-storey town houses, but later on you find yourself in realizing magnificent buildings for the rich and famous. A level is considered to be solved, if, within the specified time, the received contracts and tasks have been fulfilled.

During the game the player receives more and more new tools, machines and experience points. On the hunt for the high score, the game can be played with friends too.
Key Features
Detailed scenery in 3D graphics
Detailed skyscraper models
Fully animated machinery
Planning, human resource and machinery management
Long lasting fun factor due to highscore function
Intuitive control via keyboard and mouse
Tutorial for beginners