I believe games fall into some spectrum between movie and sport, the experiences are very different.
As a player, I'd love such a classification. Increasingly I just don't have the time to slog through an entire Elden Ring or Starfield. Give me a way to easily find more Rocket Leagues and Cocoons.
The issue is that you know exactly what percentage of the game you haven't experienced and exactly how good the game is and it makes it next to impossible to stop playing.
'The Last of Us' is incredibly long and among the best linear non open-world games ever made. That said, it's entirely linear and the thought of sinking such a massive amount of time into a game that's effectively a very long movie give it a very low replayability factor.
Likewise, Skyrim is a massive open world game that's incredibly linear and repetitive, giving it a low replayability factor.
Rockstar has several very long open world games that have massive replay value and don't get stale with repeat playthroughs. On the flip side, if you haven't played through 2 or 3 times you've generally missed a decent amount of content. GTA San Andreas, RDR2 and GTA V all fall into this rare category of long games that are highly replayable.
With open world games the key to high replayability seems to be NPC AI quality and providing different outcomes for different actions and the order in which you do things in-game. Allowing you to do lots of missions in whatever order you choose goes a long way to breaking up any feeling that you're watching a movie.
You might spend 20 hours playing through a main story, and another 200 running around doing other stuff without ever actually starting over in a new game.
Skyrim is a game that, shockingly, people still play today. There's players with 1500 hours. It's not my cup of tea either, but putting it as an example of a non-replayable game is more than a little dubious. Especially when GTA V and RDR2 have basically the same practical problem, yet you find them highly replayable somehow.
What a game needs to be replayable is a fun gameplay loop that is enjoyable when the novelty of story has worn out. Even simple gameplay loops like the one of Hades can make the gave very replayable. If you like, say, the gameplay of Spiderman for the PS4(another game longer than Last Of Us), playing it again will still be fun anyway. If you are going in it for the story only, it will not. Very few games spend the effort on making all the little decisions have relevant story consequences: Basically all you ever get is illusion of choice. It's the fighting, driving, shooting, or strategizing that has to be so fun that doing it for 100+ hours can be rewarding to some people.
I may not be the biggest Skyrim fan in the world but this is just patently false from my experience. I know tons of people who've played through Skyrim multiple different times with different playstyles and allegiances.
> GTA San Andreas, RDR2 and GTA V all fall into this rare category of long games that are highly replayable.
I can't say I've ever felt the need to reply any Rockstar games so much as continue playing them. The story missions are tedious compared to just messing around exploring the open world.
For example, an online PvP game has discrete games (e.g. a worst case of 2n minutes to play chess with a time limit of n minutes), one often plays a few games in a row depending on fatigue and available time, and replayability is infinite.