- PS4 Story = 194 hours at 100%
- PS4 Online = 391 hours
- Total: 585 hrs from 2018-20

5 years later...

PC Story: 278 hrs at the end of the main story. 306 at completion. 322 at 100%. That's without touching Red Dead Online. It took me six months to complete the main story.
Edit: 410 hrs at 100% achievements.

Everything about this game is a 10/10: characters; story; open world; graphics; animations; setting; dialogue; music; NPC & animal models; atmosphere; sound design - the whole lot. The details in the open world are incredible, for example: individual strawberries being modelled when you're eating them from the can, and extremely realistic skinning animations (fully mocapped) playing when you skin small, medium & big game. You can go on a bounty hunting mission where you can optionally get more information from the sheriff before departing, which adds to the world building. Then when you reach the target area, you can either Question or Threaten the NPCs, both options are fully voice-acted and better yet, the NPCs react differently to your choice. On the way back to the jail, the bounty target has two dozen lines of dialogue which again, the protagonist will respond to. That is one of thousands of player-NPC interactions you will have in this game.

If you just went from story mission to story mission and didn't take the time to savour the world (which is a character within itself) and side content, then you simply played the game wrong. Even the Epilogue has 50+ hours of content. The story structure is like a TV show and should be engaged with as such: not binge-watched in the fastest time possible, but played at a slow pace to fully appreciate the narrative. Because this is not a video game, it is an interactive television show.

By far the best game Rockstar have ever made - yes, it's better than GTA V - and the best game I have ever played; the only one to truly make me feel empty inside after completing it.

Red Dead Redemption 2 is a triumph. It's a masterpiece. The Perfect Game.

May I Stand Unshaken.