I was really impressed by Black Mesa source, they did a great overhaul of Half Life 1 and made playing through it a joy again. Half Life 1 really is a fantastic game, as far as linear single player games are concerned. Half Life 2 isn't really half the game imho, Hl1 was just a hell of a high water mark. The only issue with Black Mesa was the new music they were forced to use, but besides that it was an amazing showing for a free, community-made project.
I'm playing MWO online right now. As a fan of the old Mech Warrior games, It's pretty good.. A little grindtastic though. Building the mech of your current dreams takes alot of time which I don't necessarily want to sink into gaming, or even just one game. Also, when you truly excel on the battlefield you only really make 2x as many points as if had done nothing to contribute at all. Also, the weapon balance is all wonky and insensible right now, with many weapons types being effectively pain crap (flamers, most pulse lasers). I think it's in open beta and you can get in on the action if you like.
Cool sale on GOG.com today:
http://www.gog.com/
I've been really impressed by the aptly named Good Old Games service. I must of wasted 3 hours or more trying to get Wing Commander 3 to run properly on Windows 7, and there was always some issue. Their people take the time to do all the workarounds for you, give you a nice gui with options that you launch from, and you pay a small sum to the legal owners of that old game. Everyone's happy. WC3 runs without issue and even has modern USB joystick support. Similarly, I had alot of trouble getting ISOs of Rollercoaster Tycoon 1 and 2 to work properly, let alone cooperate with expansion pack installs. Good Old Game just made it work like a charm at a very reasonable price that honestly I'm happy to pay.
FOr those who don't know about Wing Commander 3, it was one of the most expensive games ever produced at that point, and featured the acting of Mark Hamill and Malcolm Mcdowell. It was a ridiculous, awesome game.
For no good reason:
Edit: incidentally, the maker of this great series, Chris Roberts, has gotten over 2 million dollars on a Kickstarter project to resurrect this once great genre. Look out for Star Citizen in two or three years, it should be a blast.
