[hd4]

I think this marks the first time EA have open-sourced a videogame, a welcome development.

[Macha]

That would have been Micropolis in 2008, I think (better known as Simcity, the open source release was renamed to be super clear it doesn't include the trademark)

[swat535]

I think this is the biggest release of open source they have done, if am I wrong, someone correct me please.

Either way I’m very impressed !