Why is this place empty? Game may be dead now, but it was still awesome.

this game is still one of the most complex to learn, one of my all-time favorites... i still play it to this day, even after 10 years. there is still an active community over at the catacombs.

My GPU(9400gt) broke, so while it was away i purchased this game. Even in 2009 this game has a decent sized following. Most servers are full of bots to trick you into joining, but some are actually full of players. It's a bit hard to play nowadays because the people who still play are all experts, but it's still a fun and exciting experience. I actually prefer this to TF2, i just wish this was a bit more graphically astonishing.
 
Epic game, ages well. I just don't get why the original CS or DoD have more players today, this game was better!

This was an old bump. 
But I do own this game and have never played it, I should install it sometime.

This was my alltime favorite FPS for the longest time.  I just wish TF2 had the same well map from TFC, then I'd be set.

My favorite game of all time hands down is TFC.  I have very fond memories of this game and playing with my clan DR.  Just wish I kept in touch with those guys because we had a blast.

I recently bought it but haven't gotten into it yet. Bit complicated. 

One of my favourites for sure, just too bad there are no active public servers, besides the ones with bots. 
Head over to #tfc.pickup on QuakeNet if you live in Europe and feel like you are ready to test your more serious skills in TFC :D 
 
Also, Fortress Forever, the Source version of TFC, is very successful in my opinion. It retains all the good parts of TFC (it's actually just like a copy) and integrates them very well in the Source engine. It's free, if you have a game that uses the Source engine on your Steam account. There's also a pickup channel on QuakeNet for Fortress Forever, I just don't remember the name. 
 
Good luck!