Gaming Game(s) that lasted you for a long time.

[Cyan]

Picross DS (I still haven't completed all the levels, I'm playing it since its launch, from time to time).

 

[Lockmaster24]

Dragon Quest IX, it takes 24 hours to beat the main story be yourself.
Phantasy Star 0, again rather long gameplay and extremly fun multiplayer
Pokemon Ranger 3, I have well over 50 hours multiplayer. It is extremely fun multiplayer but drags a bit single player.
Main Stream Pokemon games. My pearl got the pokedex filled so there was a good 150 hours.
Pokemon Mystery Dungeon. Spent a few hours attemping Destiny tower.

God, what else. The Pheonix Wright and stuff got played a bit. Ummm, Jump had a large amount of time into it.

Can't think of anything else right now.

 

[Dr.Razor]

Pokemon Blue and Gold when I was a child
Dragon Quest VIII -Over 100 hours
Okami

 

[Fel]

So far I've probably put most time into these four, all of them have 20+ hours.

Etrian Odyssey
Suikoden Tierkreis
Tales of Innocence
The World Ends With You

 

[CamulaHikari]

Shin Megami Tensei: Devil Survivor
Tales of Innocence
Shin Megami Tensei: Strange Journey
The World Ends With You
Etrian Odyssey series
Suikoden Tierkreis
Okamiden
Ace Attorney series
Professor Layton series
Dragon Quest IV, V, VI, IX

 

[Ravte]

Ace Attorney series - solid 30-60h of gameplay even if you play them over again.

Someone already mentioned this but I'll go ahead and second this: Disgaea - Slow as hell - had mine at 30h and I was only like past the 7/10 mark with cheats enabled for 4x rates to lessen the tedious grinding.

Soma Bringer - Diablo styled RPG which requires you to replay the story over and over again (3-4 times if I recall correct) if you want to achieve all the phat loot/best items the game has to offer.

Castlevania series - it's not really that long really (~20h per game) but for example Order of Ecclessia offers some hard modes and other challenges which can consume your time if you're up for the challenge.

Tales of Innocence - Got my save at 60h and still trying to level up for the extra tower. (forbidden guild or w/e the name was)

 

[Daizu]

I've gone through Star Wars: Knights of the Old Republic countless times. First played it back in 2004, no idea how many runs I've done. All the different dialogue options and there's a lot of sidequests to keep you busy.

Jade Empire, made by the same people who made KotOR, took me on a similar run.

I was really looking forward to Kingdom Hearts II and I lost track how many times I went through that as well.

Persona 3 and Persona 4 took me a long time because Shin Megami Tensei games are hard. And they have a lot of emphasis on grinding.

 

[Nathan Drake]

Picross 3D is amazingly time consuming. I go back to it every now and again and solve a few more puzzles. Been going on like that since the game was dumped. I need to buy the legit cart. I will happily start from scratch.

I clocked around 200 hours on Pokemon Pearl, but I haven't binged on Pokemon so heavily since.

 

[ECJanga]

Final Fantasy Tactics A2: Grimoire of the Rift
Mario Kart DS
Neves
New! Super Mario Bros.
Picross 3D
Picross DS
Pokemon Black / White
Pokemon Diamond / Pearl / Platinum
Pokemon HeartGold / SoulSilver

 

[Jerome10]

Pokemon HeartGold/Soulsilver, Diamond/Pearl/Platinum and Black/White (More than 3'000 hours all combined xD)
Pokemon Mystery Dungeon Blue and Time
Picross 3D
Tales of Innocence
Heroes of Mana and Children of Mana
Metroid Prime Hunters (Online play, the story mode is too short)
Mario Kard DS

And I think that's all for the most played games (I have got some other games somewhere, but I don't play with them that often)

 

[machomuu]

I've gone through Star Wars: Knights of the Old Republic countless times. First played it back in 2004, no idea how many runs I've done. All the different dialogue options and there's a lot of sidequests to keep you busy.

Jade Empire, made by the same people who made KotOR, took me on a similar run.

I was really looking forward to Kingdom Hearts II and I lost track how many times I went through that as well.

Persona 3 and Persona 4 took me a long time because Shin Megami Tensei games are hard. And they have a lot of emphasis on grinding.

For the DS.

 

[Vigilante]

Pokemon games should do the trick.
Pokemon soul silver and pokemon dungeon games to be more exact

 

[chemistryfreak]

I highly recommend Pokemon Black & White.

 

[Deleted member 473940]

Pokemon.
If you are into competitive battling, that is.

 

[FireGrey]

Nintendogs
Pokemon
Mario Kart

They lasted a long time for me, i would still play them if my DS was working..

 

[Bently]

TWEWY
Suikoden Tierkreis
999

Lots more, but can't remember all of them...

 

[BORTZ]

Lets seeeeeeee

Pokemon HG/SS ~80 hours
-two regions to explore, and tons of pokemon to collect and train

Dragon Quest Monsters Joker ~50 hours
-again, tons of monsters to collect and train and synthesize. I like this one alot more than pokemon cause its in full 3d and you can breed monsters to get better and more powerful ones.

Rune Factory/2/3 ~80 hours
I only beat the first one but i hear the other two are better and they are massive time holes. Its Harvest Moon meets Final Fantasy