A sandbox, but with realistic in-world physics and ability to do anything.

Wanna burner? Boom, take this tin can, make some holes, put in alcohol and burn. Wanna learn how telephone works? Construct it yourself! Game should simulate real-world physics and just store properties of various objects and materials, allowing you to completely unbound from game mechanics and developer's intention. Maybe you'd literally be able to conduct scientific experiments in game, and this would be a great in silico model. Maybe you'd be able to understand how things around you work. Maybe you'd be able to reverse engineer other player's creations. Possibilities are endless, you're having an entire world in your pocket.

...but yeah, we'd barely have enough developers and computer resources for that.

As a kid who loved Kingdom Hearts and The Matrix, I wanted to make a game where you could choose from the standard Magic, swords, guns, OR you could whip out your keyboard and hack the game.

It's not nearly as exciting in retrospect, as it's basically just Skyrim with console commands, but the thread brought it back to me so I thought I'd share. It felt like a cool idea in 2002, though.

I've also been writing and designing a Pokemon game in my head for the last 25 years, but I'm keeping that one closer to my chest even though there's no universe where that happens.

A good sandbox MMO that people actually play, and doesn't have a high barrier of entry.

I'd like to play a video game that would level up my real life stats.

A real Wild Guns sequel

A VR game which is basically a room with a plethora of board games. So you can play with people from all over the world. Come on Hasbro make it happen

Dynasty Warriors with Path of Exile's crunchiness

And it should have the soundtrack like DW6 did because that shit ruled

In The Valley of Gods... from the developers of Firewatch, too bad they've been acquired by Valve and they abandoned the project

A civil war simulator, where you make your policies to appeal to as much of the population as you can so they would support you and fight for your side, and if you fail to secure significant militant support you get couped or defeated.

...and how much would you pay for a pre-order special edition that came with a free in game hat for your character?

Oh my.

If I collected all the visual information I saw in some dreams I have had about video games...would I be rich now?

Monster Hunter as a MMORPG.

I know there’s a similar idea in China-only but it feels a little dated, I’d like MHRise style

StarSector but it's an MMORPG

I want Space Engineers, but better.

Building vehicles, ships, and bases block by block as your character is mechanic I enjoy that I haven't seen elsewhere. I also like the resource gathering. But I would like better physics, better enemy interactions and AI, and water instead of just ice.

Bring Chromehounds back to console. AC6 was close, but not quite there. Dial the sweatiness back to 5 or 6 instead of 11 and gimme the factional MP w/ dynamic comms. I know MAV or whatever exists for PC but I want my comfy console experience dammit

I would love something like Hellgate London (I think that was its name?), doesn't have to have the same premise, but needs to be a lot less buggy, no p2w, and more production value

I wanna build a fort and shoot at zombies on my phone with friends and can't seem to find someone to take my money.

Aight I got one I think is oddly specific, and another that's just odd.

I'd like Starport: GE but as a fantasy RPG theme, instead of ships and colonies it's classes and villages, work the reputation system into a good/evil alignment and change some gameplay.
Not sure about this one but I would like a hub system, only thing that comes to mind for me is realm of the mad god, allowing you to go from one server to another with limited items.

On that note I should probably try to play starport again, has been a number of years.

Other than that, maybe a 1v1 auto battler? A mix of part of a dream into hazy dozing in and out put an idea for an auto battler where you have four incubators and six chicken eggs and each incubator changes what type of chick hatches, where they then fall into the arena to start combat. The choice of incubators and which ones your remaining two reinforcement eggs go in to I think would make an interesting head to head game.

A game where the main missions feel like the early Silent Hill games but there are parts between where you explore a densely populated urban area like Cyberpunk 2077