O.K City (Has Three Mods In It) LINK AT BOTTOM
*I Made This In Minecraft Editor, Means You Can Only Play It On Minecraft Preview Because I Made This In The LATEST Version (1.20.20)*

History
OG Map -- 2018 >> 2020 | Minecraft: Nintendo Switch Edition
Revamp -- 2021 >> 2023 | Minecraft Bedrock Edition (Nintendo Switch)
2nd Revamp -- 2023 >> Now | Minecraft Editor (Windows 11)
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Other Ways To Play It Outside Minecraft Preview (This Is For PC, You Can Do Something Similar On Mobile)

1. Import The File (O.K City) To Minecraft Bedrock Edition, Then Create A New World (Flat World).

2. Then Go Here In File Explorer
%LocalAppData%\Packages\Microsoft.MinecraftUWP_8wekyb3d8bbwe\LocalState\games\com.mojang\minecraftWorlds

3. Find The O.K City World File, Open It And Copy The "db" Folder

4. Find The File For The New World You Created, Open It And Delete It's "db" File, Then Paste The O.K City's "db" File

5. Play Your New World, It Should “Mostly” Work, When I Did It, The Concrete Blocks Became "Update Game Block".

MODS USED
https://mcpedl.com/creator-packs-more-slabs/
https://mcpedl.com/magistral-addon/
https://mcpedl.com/truly-vanilla-rtx/