for those who dont know, steam released 5 fan made hl2 mods avaliable on steam. these are free for anyone who owns a source game. the five mods are as follows
Synergy- a hl2/ep1/ep2 single player co-op. really fun, but not so much when you have 10 gordan freemans all trying to get through the same door. and i also think it has a ut2k4 invasion style gametype, altough i havent tried it.
Insurgency- a cod4-like game, but based more on teamwork, has great potential, if i can ever find out which way is the enemy base
Zombie panic- just as the name sounds, a zombie game with survivors, and zombies pitted against each other in various locations. similar to the css zombie mod, but much harder. easy to learn, not so easy to win
D.I.P.R.I.P Warm up- die in pain, rest in peace. a vehical only game, each vehical has machine guns, rockets, and much more, has potential, but not my cup of tea
Age of chilvalry- a medevil fps. swords, axes, bows, i can see what they tried to do with it, not that good, kind of fun, has potential
overall these mods are pretty fun, the many bugs seem horrible untill you realize that they are fan made mods, with updates to come.
P.S. if any1 wants to play through the half life 2 single player with me in synergy, i would love to!