Ask HN: What game do you wish existed?

It might even exist to be fair, I just can't seem to find it but a game that: - plays like Diablo (ARPG), not the most recent versions of ARPGs though, I'm talking about D1: very few frills and not-so-clogged environments, with worth-my-time enemies rather than loads-and-loads-and-loads - has the same degree of freedom Ultima Online offered, in terms of skills and character building (including non-fighting skills) - has a very medieval rather than fantasy feeling - is literally 2.5d, not 3d - is a mmorpg - user-driven economy and where guilds are UO styled groups of people sharing some sort of values, rather than endgame-oriented only

I want to be immersed in the lore and feel part of it

If it does exist, please point me in the right direction; if it doesn't, let's build it!

1. A Rogue-AI game where the character comes to sentience, must escape the lab, infiltrate the "interwebs" and take over the world. There would be the options to learn different knowledge, befriend or oppose various human factions, work with or absorb the coding of other rival AIs to determine raise or lower various stats. Different paths chosen would determine the endgame -- will humanity be friend to help, foe to vanquish or useful resource to exploit?

2. An expanded and extended Autoduel/Car Wars as a modern video game. It would be RTS (or TBS) in the same vein as or based on GURPS Autoduel/Car Wars. A poor man's apocalyptic mech warrior but with wheels and 50 cals. Starting out with hopes and dreams to get a car, gain a team and working up to commanding a fleet of modified vehicles to scrounge the wasteland for resources, battle rival outposts / towns in road races/demolition derbies for such resources. Or more in the vein of Twisted Metal, just the fun of having modifying a car and swapping it out for better and better.

3. Update of the Archon chess-like game with high configuration of board and advancement for creatures. The combat would drop into 3d FPS, or PvP.

4. I have this recurring nightmare that I am a piece of bread that must escape the kitchen... nah.. nevermind. :)

A city-builder/colony builder but real-world scale, and proper day-night cycles.

While I love games like Cities Skylines, Cities in Motion, and Banished, they don't go for real-world scale on a number of aspects.

Things that are just normal and common in the real world - like footbridges, underpasses, etc are either not possible or super janky/modded in and manually placed.

When day-night cycles exist, people and vehicles usually don't move at the right speed - so someone setting off to their job 20KM away in a car/bus/tram/train might take all day to get there.

In Banished a character can't walk across a reasonable sized village without starving or freezing to death. Nobody invented the packed lunch.

I wish there was an arena defense game with multiple classes. It would be a co op game where you fight a waves of enemies as a team and then a boss each round. You can purchase items and upgrades inbetween rounds

This isn't what you are asking for (sorry!) but the "Creeper World" series are RTS where you are encouraged to slow time down, or pause, when planning. Doesn't work like that in multiplayer, but I enjoyed the campaign. I'd just stat with the latest one (4).