Scripts you end up reusing in every Roblox project?

I'd add a little camera/tween helper module. Every project ends up with screen shakes and UI pops and writing TweenService boilerplate each time gets old fast. And a debug overlay that only shows for your user id. Saves so much printing.

the ones that live in every project for me: - a datastore wrapper. i stopped writing my own and just use ProfileStore by loleris, session locking alone saves a lot of pain - Trove (or any maid-style cleanup module) so connections get disconnected when a round or player ends - a small Signal module for custom events - one remotes module that creates and fetches all RemoteEvents by name, so client and server never typo a name the round system i'd honestly keep as your own though, every game needs it slightly different. write it as a simple state machine (intermission, playing, ending) and it ports between games pretty easily.