Questline is a free, server-sided Roblox module that aids in the creation and tracking of Questlines.

Features include:	-
Create Questlines that automatically save.	✔️
Event-driven, using native Roblox events.	✔️
Clean implementation that's easy to use.	✔️
Highly customizable and open-source.	✔️

Check it out on DevForums.