Because you like the feel of a game. The gameplay, the atmosphere, the ambiance. I guess this is more for people who play games because of the literal gameplaying aspect. Not people who play because they want to watch cutscenes. For example i played FEAR maybe 50 times. Why ? Because of the gameplay. Because of how weapons feel to shoot, how the combat scenarios unfold, how the AI behaves. That i know how the story unfolds has negative importance or interest

• Run optimization.
• Because I genuinely enjoy the game.
• Because certain games take longer than others and I’d rather just run through something short, especially when I have too much shit going on in life to keep up with a larger game.
• Because I don’t give a shit about the story and knowing it ahead of time does not change my experience.
• Because sometimes it’s more comfortable to re-run through something that I know, than starting something new that I don’t, especially when I’m sick / fucked up / have other shit going on.
• Because I want to.

Same reason people rewatch movies or tv shows.

Sometimes it’s a case of skill and mastery. The game might still be hard, or the higher level of skill developed may allow for different play styles, or because it’s pretty fun to style on things that used to give you difficulty. Sometimes like a book, film or TV show the story or the artistry might remain enjoyable. I’m also generally of the opinion that if a story relies on you not knowing what will happen for engagement then it wasn’t very good on the first place.

Same reason you re-read a book.

The same reason people reread books, rewatch movies/tv shows or go back to a nice restaurant/bar they’ve been to before:

You enjoyed it once so you go back to enjoy it a second time.

For me, old game is old as soon as I’ve played it. If I haven’t collected something in the initial run through, bad luck, I’m not going back, I don’t have time. I’ve done collect-a-thon achievement hunting in the past and I can no longer be bothered.

The only 2 games in the modern era I have replayed are Skyrim (launch & special edition, and no, I’m not going back for anniversary edition) and GTA V (launch & just because I had completely forgotten the story - hint. it was shorter and slightly disappointing to what I remember).

Do you only listen to a song once?

a good example of why, are the bioware games before anthem.

all of them have multiple classes, dialogue choices which leads to different outcomes. most of them are okay, but some are really impactful to the point of affecting the ending.

mass effect is my favorite of them all. mass effect 2 is the game I personally replayed so many times in my gaming life. a few runs on the ps3, then on the pc right before OG mass effect 3 release, then recently(the whole trilogy) on the legendary edition on pc.

god, I’ll probably replay the whole trilogy again before mass effect 4 releases, if I am still around whenever/if ever it releases.

The same reason people rewatch movies and reread books. Entertainment is not lost just because we know what’s coming and desperately require something new, which is extra funny considering how few new things actually feel refreshing, unique or original.

This isn’t rocket science.

Same reason you might replay a multiplayer game or re watch a movie or re read a book.

Because you enjoy it.

And that’s assuming the game is the same every time you play it. Many single player games are not the same experience every time. Much like multiplayer games aren’t the same experience every time. Heck. Static movies and books can change experience over time based on how you view it in each watching/reading. Whether it’s for pure entertainment or to analyze it. Or if your own life experiences make you re evaluate the media and what it means to you.

Let’s say for mass effect. The basic story is overall the same every time. But your class can change the gameplay. The difficulty can change how you play. The paths you choose through the story can change. How you play the earlier games may change based on what you know of the later games.

Thus it’s never quite the same experience.

The game is just that good. Really got nothing else to tell ya. Wouldn’t be playing it otherwise.

The same reason I watch films that I’ve already seen before

“After eating a single McDonald’s cheeseburger I’d decided that I had experienced all burgers had to offer and therefore decided never to partake in a Burger again”

The game is fun. The game has new game, plus so you can run through early levels with later level items and fuck up the early level enemies, for challenges, for items for new game plus. There are plenty of reasons some people play single-player games more than once.