You know you play too much freespace when after all you hard work ( and lots of begging) the wife tries the game out, loves it and wants you to make missions for multiplayer with her, you do this, but then she has to play the solo version because you are bored with playing.
when you actually play the soundtrack in your car just to have that homey feeling
when you decide to pick the soundtrack apart......then enhance all of the music with crunching guitar work
when you are sitting in a traffic jam and you think....this is a good place for a shivan ambush....and you plan your next fred mission
when you remember everything you designed in your car oin that trafic jam and go home and make it. 9 hours later.
when you dress your children as vasudans and shivans for halloween.
when you learn to sew just so you can make the costumes for them