I'll start: REmake. It is a game that you can beat in an average of 5-6 hours. But my first time was around 22 hours clocked in the game, plus another 6-7 hours not counted in.

Second, Resident Evil 4. Something between 10-12 hours for a normal playthrough (or even less) but I did in around 27-30 hours.

What about you?

Probably Paper Mario: TTYD. During the Glitz Pit on my 1st play through, I would always fight to the death those annoying invincible guys, dying over and over again not realzing

I had to run away to hatch the Yoshi egg.

I probably spent a good couple unneccesary hours battling them without realizing what to do. I learned an important lesson that day: 

Learn when to quit.

Beyond that, I was also pretty slow in solving the whole game, even if it was my 1st RPG type game and I was in 5th grade at the time.

I think I spent over 20 hours playing through the original Half:Life. Such a brilliant experience.

I also needed that much for resi 1 but i think if you let the options run the game counts this also as game time. But i only needed to look at youtube once tough, everything else i figured out for the first play. 

All Metal Gear Solid games. They take up to three to five hours if you know what you're doing, but the first time you get into them it takes a lot. Like 15-20 hours.

Yep, TTYD was very good. I loved chapter 3 and 6. My first playthrough was like 65-70 hours or so.
Also Twilight Princess. 60-70hours.

None in particular.. I guess I'm more hardcore than I thought!

Ocarina of Time on the N64. Almost 3 months.

It took me 10 hours to beat The Order 1886. Based on the internet, it only takes 5.

;)

To many people it was a long game. To me not, but that was because my first exposure to the game was the Gerudo's Fortress and the final boss.

But I have to admit, Ghoma made me like 4 game overs the first time...