This RTS Engine is very similar to Warcraft 1 and 2, but it also has some newer features like being able to create control groups and attack move.
DEMO: https://www.dropbox.com/s/3j42avghw82a8pt/RTS%20GM%20Marketplace%20Advanced%20Installer.exe?dl=0
Make sure you create a constant variable called GRID_SIZE and set it equal to 64. You can do this by going to Macros and double-clicking on Default.
Graphical assets may not be redistributed, or re-used in a free or commercial product. Source code may be used freely.
End User Licence Agreement (EULA).