I've tried this game. Seems okay. :)

VALVE, WE WANT HL3!

After playing this for a few hours I've decided that this game can be considered worth it.

This game will show your dark sides, how cheap you are, how cruel you are. When you enter this game there's no way back. You will backstab with a stunstick your own brother for a frag. Most of people like rats here: they shoot you with RPG in the back, they will throw SLAM grenades around you while you're AFK and when you die they will desecrate your dead body.
But you will enjoy that all, because gameplay is fine.

A very awesome game. So many things to do. It has alot of potential but valve has left this great game behind.

This game is like a relationship, one day you hate it so much and get so angry and the next you love it so much and it's the best game ever. It has flaws like any person and it has good things about it. Dispite the ♥♥♥♥♥♥♥♥, it's the best ♥♥♥♥ing game ever made

Great game, definitely one of the better games of my childhood and still the best around. Has Fps action + the ability to "sprint" with the games physics allows it to be a fast-er point and click shooter if not the fastest and the props/objects effecting it even more make it unique requiring good senses, reflex, smart reactions, coordination with just about everything to play at a decent potential. Where else can you Yoyo a grenade to keep it from 'cooking' it's fuse out before propelling it on it's last fuse reset that you can time for distance and height in coordination with how fast you are moving and your target's speed and the force of the 'gravity gun' you use to propel it with, no where else but hl2dm. Has different kinds of unique weapons like the gravity gun propelling a object to a person to kill them with, or propelling that object against another object to move that away from a distance. And to block a path with many objects or stack objects to reach a platform. Also the crossbow is an example of unique weapons with how it fires in a arch and hard to aim with even with it's scope but can kill a player instantly and with correct positioning can bounce of the floor walls ceiling terrian etc. and with enough practice can be well aimed to kill a player half the map away behind 2 corridors and a room. That is a taste of the Uniqueness of this game, after overlooking it's default multiplayer team vs team worth, there is it's booming in vast unique options to how to play the game with it's community's modded creations, there is co-op themed maps where you can fight with teammates against hordes of aliens, zombies, monsters and cyborgs getting points with the ability to use them to unlock server abilities to costumize your character with a deferent apearence, both in model skin and size, lights that glow on your model, lights that follow your model and more, then there is puzzle maps where you may enter 1 of 12 parts of the map at a time with your team or individualy and complete tasks like finding the exit in a labyrinth or placing and freezing a pile of crates to build a terrian leading to a exit floating high above in the sky or surfing on long slides without falling into abyss to reach a exit or jumping over ditches, climbing and avoiding obstacles in a temple like area to reach another exit to collect all exits and unlock the last portion of the map to complete it. Then there is Roleplay... a blend of multiplayer fps combat with gta style like the need to Purchase weapons or health or armor. Earning money by the minute with the wage given by your level or killing others for their pocket money, then saving that money to invest in a faster method of earning money like growing drugs to sell or printing money both to us on getting more guns or to purchase a home to hide in and to keep your drugs or printer safe, from other players or other players playing as Cops... who may not only steal your illegal possessions but will also place you in jail for some time so that they too may earn the points they need to progress faster and easier in that server. You may also invest in a home to hide from all players and keep your possessions safe, and to meet with your group of friends to prepare for a war against another gang, or to meet with your gang to prepare for a war against the police in alliance with other gangs for fun or for an event to earn more $. Also events are constant and include situations where a monster is spawned in the map similar to the any/many of the ones found in co-op maps that drop money on death. Another situation would be looking all over the map to find an object or player hiden with more $ $ $ that is given to the winner that finds it first. Or when admins just decide the server is full enough for a mass money drop in the middle of the map including weapons and item drops. There are also many more mods but I just thought to name a few of the ones that have me so adicted to this game. This game is worth the very low ticket price for all the fun is has to offer and is very much Alive, if not so is still rich with creativity you never know what's next. I rate it 5 out of 5 stars * * * * *.

So underrated, fast paced unique combat, it's sad valve gave up on this one.

It's a good game, fun to mess around on. +1 buy it :)

Fast-paced game where you need more than an aim. Kinda hard when you're new, but as you play it longer, you're getting better and better you'll start love this game. You can enjoy friendly oldschool community with older players and less ragers. For me, personally, it's the best FPS game I ever played. 4€? 100% worth it. Just try.

you can get kills with a toilet.
nothing is more to be said 11/10 IGN,NEEDS MORE TOILETS!!!!!

Valve has a history of making famous Deathmatch games, and thats beacuse they don't bother over complicating the concept of Deathmatch. Tihs game along with Day of Deafeat Source and Counter Strike Source are simple and yet have raked in players by the thousands upon millions. It's a simple Deathmatch experience but it's not anything new. 2 Teams pitted againnst each other with your usuall Team Deathmatch action, nothin to complicated but it is still fun.

gameplay+enviroment+unlimited maps = awesome

An older game, as it's essentially an extension of Half-Life 2. Even though it's aged now, it still is a blast to play with friends. The Gravity Gun is what makes it so unique to many of the other shooters out there, even today in 2014. Similiar to Quake, it doesn't have a sprawling community to it any longer as Half-Life 2 is well beyond it's years now. If you get into matches you tend to get into an older community that is generally very friendly and results in some of the best games of Deathmatch, or other matchmaking playstyles. All it takes is about 5$ when Half-Life 2 goes on sale, if that even, so I'd recommend anybody who is into shooters to buy this game. I guarantee you'll have a blast in a server that is full of 6+ people, and even less in some situations.

Played until my arm got dead. Great game. Gonna spend hours on it :) ps. My arm hurts.

Story:
11pm: "Gonna wake up early tomorrow, I'll sleep in an hour".
11:15: Purchased hl2:dm.
11:30: Finished downloading it.
11:31: Tried game and joined random server...
1am: Saw a rocket launcher on a building.
1:30: "I'M THE KING OF THE HILLLLLL".
2:00: Someone named bob killed me and now he's K.O.T.H. "go to hell, bob".
2:05: killed him, again the K.O.T.H.
2:10: he killed me, now he's the K.O.T.H.
02:20(now):realised it is 2am, exited server and game, gonna sleep.

K.O.T.H. = king of the hill.

After 10 years still a good game with nice physics engine. Slowly the community is almost dead, but some good players and servers you can still find. At deathmatch its better than CounterStrike, at teamdeathmatch not as its not so high tactical game. Maps are also many nice ones around made by the community. Some servers use funny mods or settings. The community itself could be a bit more friendly, as some players flaming around a lot. But in other games its mostly the same. About gameplay... it takes a while till you get involved with some tricks and the physcannon, but after a while you won`t miss that game. Cheaters are also some around, but not as much as in CounterStrike. Try to learn nade-throwing with physcannon and good jump techniques beside your aim, than you have a lot of fun. check out hl2dm.net, tsgk.com, half-life-gaming.net, bloodsuckers.de.

Got hit by a flying toilet by a kid yelling:"Get pwned,noob".
Would get toilet rekt again 69/10.

Run, gun, repeat.

This game is AWESOME, it's fast paced (try to play COD and then go back to HL2DM and you'll see what I'm talking about).
Also the ONLY game that lets you kill your friends with a heating radiator! 10/10

See what I'm talking about:
http://youtu.be/pryNr7WLZ9E

Classic as fak, Go play it at once before going into Call of Kids.