Here is some interesting discussion about 0 A.D. in the same context by one developer: http://www.reddit.com/r/programming/comments/2kdfyq/an_open_source_engine

Here is some interesting discussion about 0 A.D. in the same context by one developer: http://www.reddit.com/r/programming/comments/2kdfyq/an_open_source_engine_clone_of_age_of_empires_ii/clkc90b http://www.reddit.com/r/programming/comments/2kdfyq/an_open_...