and I was wondering how do they achieve it?
It looks like they use some type of global plugin/model for it because a lot of games have similar design and I doubt that they do it the typical way of disabling in coregui the inventory and making a custom one,
Though I don’t think it’s worth your time trying to use since unfortunately it uses a lot of Roblox exclusive modules and functions restricted to CoreGui only.
For games that have perfectly replicated Inventories that resemble CoreGui I’m really not sure since removing the CoreGui required functions would likely take more time than making your own backpack
would actually use this if there wasn’t a better solution, there’s a module called satchel and it looks a lot more optimized and easy to use than this, so ye I think I’m just going to use that