Length

[mikeward1980]

Roughly how long is this game?

[WizoDard]

40-70 hours. Depends on how much time you like to take. My friend completed in 40 hours because he just sped through it, while I took 70 hours because I really liked to get immersed, sit back, relax, and enjoy the scenery. But mostly I walked around to talk to people to see what they were doing and how they felt at the moment, to gain a base ground on who might kill or not. I also looked for the hidden items, which can be either easy to find, as in right infront of where you have to go, or completely hidden.
Keep in mind though that if this is your first Danganronpa game/first time hearing about the series you should go back and play the games or at least watch the anime and then the games.