Freespace 2 is, fifteen years later, still the finest first person combat-focused sim around. It's combination of exceptional storytelling, insanely satisfying combat and the best control scheme and H.U.D. around still make it the pinnacle of the genre. Whether you're escorting a convoy, flying undercover or destroying a Shivan cruiser, you're in for an amazing thrill-ride. You can see my own play through of the game right here to get an idea of what's in store.https://www.youtube.com/playlist?list=PL6K1_LepsaN-XOh-0ZHC27hY2YXInKmn5
This isn't simply a game you're purchasing, however, it's also a platform for more content. Thanks to the Source Code Project, you'll not only have access to updated graphics, but new missions, campaigns, and mods that extend the Freespace universe and help create new universes as well. This engine also powers the total conversions for the Wing Commander-based Saga and Battlestar Galactica-based Diaspora games as well.
So with Freespace 2, you're not just buying one game, you're purchasing a portal into years of fan-based work and content that goes well beyond the amazing base game. And heck, even if you never used the SCP, you'd still have one of the finest space games around. Do yourself a favor and buy this, whether you fly with a joystick or a mouse, you won't be disappointed.