The listing, A.R.E.S.: Extinction Agenda (Steam) has ended.
This is a steam key for the game.
http://store.steampowered.com/app/92300/?snr=1_7_suggest__13
System Requirements OS: Microsoft Windows XP, Windows Vista or Windows 7
Processor: Intel Core™2 Duo Processor, AMD Athlon x2 Processor
Memory: Windows XP?1GB, Windows Vista, 7?2GB
Graphics: NVIDIA GeForce 7600 series, ATI Radeon HD 2400 series
DirectX®: DirectX 9.0c
Hard Drive: 300 MB
Sound: DirectSound compatible (DirectX 9.0c or higher)