A Game You Can't Stop Playing ?

Life.

Thats something thats very addictive in this immersive pvp, with so much depth i think i won't uncover all the mechanics ever, and the permadeath do wonders about cheaters and griefers; plus theres these various 'servers' so to say with different rules... endless possibilities, too bad cheaters thrive on the leaderboards. I would tottally dump cash into it for respawns or a respec but the dev didn't put any shop, or hid it very well. Wished the dev talked more openly with the playerbase tought.

Dota, then run off to gmod/don't starve when the losing streak is strong :(

I just never get tired of Counster-Strike: Source.

Other games I play a lot lately are:
Medal of Honor multiplayer
CoD 4 (kind of rediscovered it)

Lots of shooters at the moment...

Counter Strike 1.6, PayDay2

Age of Empires II and Warcraft 3. I play them since their release and even now sometimes (with friends, usually).

BF4

Torchlight 2 and CS:GO even if i HATE it sometimes.

Battlefield Heroes. I play it since 2009. The game is a piece of shit now, but the community there is so good.

terraria

At certain age I can't play a game longer than 1 hour anymore, so I'll tell the games I used to be addicted to as a kid (8-18yrs ago).

UT 99 & 2004, Quake, CoD 1, 2 & MW, CS 0.6 till 1.3, HL mods (Sven-Coop as #2 after CS, DoD, etc), WC3 Mods (DotA, TD's, Hero Arena's) Asheron's Call, EverQuest, LineAge I, Painkiller MP, WoW: Vanilla & TBC. And ofcourse Diablo II.

One game I can play 4 hours a week as of today: World of Tanks.

Games I quitted 2 years ago because of the toxic community while having a nice gameplay: League of Legends. The community actually ruined the biggest part of the game, together with RIOT who can't stop to change the game each week. The beta was 25x better than how it is today.

I feel so bad for the new generation youth who thinks Counter-Strike: Source & GO, CoD: BO1&2&Ghost, Diablo 3 are good games. They have no experience with good games.

LoL and Team Fortress 2

Postal 2 Complete on Enhanced Mode! I can not stop playing it AND flying around on the shovel!

battlefield f**king 2!!!...and there are still several servers full of people nearly all day))

Marvel Heroes.

Syphon Filter on PlayStation. I play this game, at least once, every year. I say game, I mean the trilogy from PS1.

Banjo Kazooie and other N64 games <3

BF Vietnam, the 1st FPS that really got my attention, and the soundtrack...I fell back now that my computer loads faster, I mean, for each map a song from the 60s...
Now I don't play that much now(cuz no time, damn almost 9 months straight of school)

Dota 2, I just can't stop it o.O lol

well none around here knows it or ever heard of it but... ACE online or AirRivals (on pvt svs). Don't know how, but i'm playing this game for 8 years...this game is like soul-bound to me...If anyone knows it (or the old SCO) bump

Risk of Rain, Team Fortress 2, Knights of Pen and Paper, Ys Origin.

Counter Strike. I play it since I was like 8 years old and now I'm 18. So yeah, in my opinion, it's an awesome fps!