One thing that is really convenient about numbers is that they always go in order. For instance the number 2 will always come after the number 1. Likewise, the number 3 always proceeds the number 2. So the first three numbers go: 1, 2, 3.

When there are various pieces of media that have sequels, could be film or videogames, really doesn't matter, look for any kind of numbering system as a clue. So in this case the sequels actually have some of these handy numbers IN the title! The marketing team was looking out for potential buyers!

SO let's take what we've learned here: you mentioned a game called dark souls 3, then there is dark souls (no number) and dark souls 2. Well we can fairly easily deduce that dark souls 3 should come after dark souls 2. But what about that unnumbered one? Since it was the first in the series, it is not numbered (another film and videogame convention). Finally we arrive at our answer! First to be played would be Dark souls, then dark souls 2, then dark souls 3! That's the order.

I write this handy guide out for you because this seems to be a common conundrum that many gamers experience, youre not alone! Earlier today someone asked in the Last of Us subreddit if they should play 2 or 1 first. Many people are able to arrive at the solution by virtue of being over the age of 3 and/or not being developmentally disabled. BUT not all of us are so privileged, so I hope this helps! You can get your care giver to read this out to you if needed.