Now this sounds great. A board game that has been digitalised and prepared in a way that caters to those of us who prefer playing offline against AI opponents, rather than online against strangers. Wishlisted until it is at a price a retired person can afford. Please bring more like these, gog.

What's important for this kind of games:
• Multiplayer requires creating a 3rd party account on Playfab
• the game offers also hot-seats multiplayer mode

Normally I buy all board game implementations... but I've already played Charterstone through its "story/campaign" on paper and I don't think I want to play it more after that. I'll check with the husband to see his opinions though. The paper copy included "automata rules". It was a game that really required a full table to enjoy. We only played with 5 of 6, so we didn't include automata for the last one, but any fewer and we would have.

So multiplayer isn’t even through gogs drm platform then?

There's no such thing as GOG DRM. DRM is evil, don't you know? There are only DRMs by third party partners, who are also evil. GOG only sells their games, barely touching them! They have to sell these games, because it was the most demanded feature of GOG community (even more than fixed forum, Galaxy for Linux and working notification system). Or sth like that.

Ye gods, do you work for gog, running out the spiel like that ;o)

Is it similar to Settlers of Catan?

How would you implement DRM-free multiplayer options then over the internet? :) I know one but I wonder how you would implement it.

Not at all, other than it's a board game, eurostyle. It's what's called a worker placement game. There are spaces on the board, and when you place a pawn, you do what that space does (and it's occupied). If another uses that space, they bump your pawn back. If you run out of pawns (you have two), you can't place and instead have to reclaim as your action.

The game's "campaign" revolves around you placing stickers [in the physical copy] on the board that change what those spaces do permanently for the rest of that game. More mechanisms, like specialized pawns, unlock through campaign play. There are tons of games that have it. Here are just a few of them I play:
Grim Dawn
Stardew Valley
Monster Prom

It involves direct connections (which also allow LAN play!) and rolling your own not-account-based server for matchmaking. In the future should those servers go away, you still have the direct connect fallbacks.

Does the campaign have a randomized mode?

No clue about the digital product. Physical game, no, because they were actual stickers placed permanently on the board.

Any method really, the hard part is the matchmaking, why we usually need servers for that.

Like others have said, there are numerous options. Eventually that play website will die and so will multiplayer for that game. Just like drm.

I suppose one argument against that is because multiplayer and esports is so big they need anti cheat and such like.

Interesting to see more and more boardgame adaptations coming here.