My dream game is something like Dying Light but in a bigger openworld, with a logical save feature and more looting. Imagine being in a huge city and you can break into every house or appartment and loot it. Sometimes you kill some zombies but for the most part you would explore the city and craft items and stuff. That would be my dream game :)

While not 3d, Cataclysm dda already does this. Free too.

I've always imagined a super-ultra-massive single-player RPG, which would have in its world many maps from other RPGs, combined in one huge world! For example: all the Gothic games maps, all the Witcher games maps, all the Elder Scrolls, the Sacred(s), the Divinities, and other RPGs' maps, all in one!

And not only that! But the heroes (the protagonists) of these games, would be present too! You could choose to play in this huge map, for example, as Geralt, or the nameless dude in Gothic, or any other customizable that other RPGs have!

And not only that! But the other games' heroes would still be present in the game, despite that you didn't choose them, and you would be able to interact with them! For example, the Gothic man would be able to talk to (and side with) the vampiress from Sacred and go on a quest together!!

It would be a tremendously huge world, with thousands of quests, tens of thousands gameplay hours, several TBs big, and several hundreds of dollars to buy...

Even better: such a premise would never have the budget to make everyone's lawyers play nice, so we'd be better off staying outside their turf by offering the program for free. In fact, we'd need to chose a core game (probably Elder Scrolls 5 or 6) and all others would be a mod for it. Our original assets would only be whatever coding and design adjustments would be needed to fit them; these games run on such different engines and interactions in all of them are unique to the game made they're made for. Then there's the question of whether these lands logistically fit together; our mod list ought to distinguish between lore-friendly and not. And how would the geography fit together, is every game an island and we sail between them, or can we take our character from any given map and load them into another as like an MMO server?

Whether it be melee, shooting, magic, potions, and upgrades; all combat assets would need to be tweaked for the core game. Some magic might need to be discarded outright if the uses of it are too specialized; and if doing so ruins the game with that magic, better not include it at all. Possibly the biggest hurdle is fitting custom and/or leveling characters into this mod system; more often than not, untested player-made faces will no doubt become digital cronenbergs as soon as they appear in a different game.

That should be the easiest part, linked worlds/realms/dimensions/planes/universes. Many of the games in question already have the concept in their lore, and it's the sort of thing that's easy to add if not already present.
Everything else though... Damn, that sounds terribly daunting, even to consider playing, not to mention developing.

Every game would be a "server", then. I could honestly see this prospect become reality if enough modders pooled their efforts. There'd be import mods for every game we support and export mods that let us take characters to supported games. I guess the import mods would address compatibility, and they'd need frequent updates to take in characters from other supported games.

But even playing it smart, with idiot publishers yammering about NFTs allegedly allowing us to do this, I can easily see them trying to shut us down despite our legally sound standing. I wish I could say smart publishers would pay modders for this kind of effort, but aforementioned lawyers would have a fit.

It's also worth noting that your premise is more fitting of another dormant thread I've favorited.

Meanwhile LegoDnD is secretly hoping that Cavalary would necro that thread since he doesn't want to receive the blame lol. A winning scenario for you for sure as you get to partake in that discussion again, that's fortunately necroed by someone else other than you. Jkjk I'm sorry ^.^

I find 0 divided by 0 shame in necroing a good thread. In fact, how's that for a dream game?

A visual novel about a forum discussing [legally distinct title obviously similar to something we enjoy in real-life] and there'd be a GTA-style wanted system where mods get worked into a huff for reasons the player is welcome to find silly, like necroing old threads. Every time you get "wasted" (banned), you continue the story by going through the profile creation again.

I think you need to work on your understanding of the term "dream", especially the realization that yes, sure, technically nightmares are dreams too, but a "dream game" never ever refer to a "nightmare game".

A dream that can endure nightmares is a dream worthy of becoming reality. I described all those hurdles because I believe they can be overcome and would love for that to happen.

No if a player cant make a move in chess, then thats a stalemate and remis.

Thats why if you're winning you have to be careful not to strip your opponent of all legal moves.

There are other rules that lead to remis, like repeating the same position, or 50 moves without a pawn move or a piece captured.

I've forgotten the exact number, but somebody has computed that after just the first two moves - two moves by white, two moves by black - there are around 200,000 possibile positions.

Chess is far beyond computability.

So no, there is no game that is more variable than chess. Not in a way thats of any practical importance, anyway.

There is more subjective variability of course, like for example obviously if you have a roleplaying game, well you can do anything you want, especially if you play it in tabletop and not just computer games. While chess is "only" moving pieces around on a board. But as a game, chess couldnt be more variable.

This is the most darling statement ever made about Chess. Cheap home computers of today can run that many computations in the blink of an eye. Computers that take up an entire office building have computed more advanced versions of Chess than you even know exist and every possibility in even those have already been explored.

You do realize that that statement doesn't actually say anything?

(Explanation: x = 0 / 0 is equivalent to saying that x * 0 = 0, which is always true and says nothing about the value of x. Hence, 0 / 0 could be argued to be any number.)

Do you realize not everything is a literal mathematical equation? I decided "0 shame" wasn't enough to express how little I care, so I expressed it more.