Robloxity 10 years later

How could a city this big become abandoned? What happened? NOTE: This is just a showcase, NOT a game. Original Robloxity not made by me. This game is still under development. The other half will eventually be explorable. Join the official group for more updates about the games: https://www.roblox.com/groups/34604170/10-years-later#!/about Following the same concept as: https://www.roblox.com/games/5730022959/Town-of-Robloxia-10-years-later