I played a lot of Action Half-Life back in the day- it's a mod which adds leaps, rolls, kung-fu and so on to Half-Life multiplayer, as well as a small collection of colourful weapons, each of which is (in theory) the equal of any of the others. It also boasted some of gaming's most legendary map secrets. You can read my love letter to AHL here, or read my account of an expedition into one of those secrets here.
It therefore fills me with a delicate, Monday morning joy to announce that Action Half-Life 2 version 2 has been released. If you own Half-Life 2 you can get the installer here, a Linux server binary here and read some details as to what's new and watch a trailer after the jump.
In short (and I'm paraphrasing this from an already-paraphrased email from one of the coders), they're switched over to the Orange Box engine, fixed 200 plus bugs, incorporated all of the old AHL1 features that were missing from AHL2 and added a suite of features so that server admins can customise their games. Sounds like good stuff indeed! If you're curious, give this one a shot. There's a majesty to it which was never going to come across in a trailer, so here's that link to my piece again.