Storing and accessing player data in games (specifically simulators)

[ToldFable (fable)]

The client should never have access to editing data.
You can allow the client to view changes made to the data via RemoteEvents, or (if you’re lazy) object values. It’s better practice to use RemoteEvents/RemoteFunctions though.

Custom Events and Callbacks | Documentation - Roblox Creator Hub

StringValue | Documentation - Roblox Creator Hub

Also, in terms of performance, it’s best to use multiple RemoteEvents/RemoteFunctions instead of sending some sort of ID through the network.

ORE (One Remote Event)

We can measure how much data a remote needs to send in bytes. Basically each character in a string is one byte, so “ExampleRemoteKey” would send at least 16 bytes because it has 16 characters. When numbers are used, it needs to replicate a double which is 8 bytes long. It’s a little more complicated than this though. Roblox also needs to send the value’s type as well as string lengths. There are cases where a string can use less data than a number, and there are cases where a number can use les…

EasyNetwork - Creates remote functions/events for you so you don't have to!

Intro https://www.roblox.com/library/5023179796/EasyNetwork Network.lua (26.3 KB) - Alternatively you can grab the file Hey everyone, we built a decent shared network module for The Wild West, and I wanted to release it as a free resource for you guys. This can be especially useful for new developers or old developers daunted by switching over to Filtering Enabled! This is a single module that you slap into ReplicatedStorage, and it just works. It mimics functionality of Remote Events/Fu…