
1) MacOS game 2) Windows game
Found on
https://www.crosswordclues.com/clue/blockland

Blockland is a single and multiplayer computer game built on the Torque Game Engine, in which players build using Lego-like building blocks. It was developed by Eric `Badspot` Hartman and was released on February 24, 2007. The game is not endorsed by, or affiliated with the Lego brand. However, at one point, Lego was in talks with Eric about sel.....
Found on
http://en.wikipedia.org/wiki/Blockland
No exact match found.