Hi :-), no itīs a free multiplayer-game like Enemy Territory and there is also a SDK out already:
Official website:
http://whatisfear.com/us/
Free registration for Multiplayer-game:
http://www.joinfear.com/main
Free Download (1,8GB):
http://files.filefront.com/FEAR+Comb.../fileinfo.html
I tried it and its really latest engine technology- you need a good DX9-board and have to configure the graphic-options very carefully ;-). But not bad overall. Several gametypes are available like CTF, DM and a few others. And itīs completely for free.