The Roblox DevHub is a great place to find answers to most of your questions.
Roblox Developer Hub
The following links should help you get started:
Articles in this section
- Configuring Your Place's Chat Style
- Basic Place Settings: Name & Description
- Social Media Links for Games
- Building/Scripting Help and Tutorials
- Roblox Studio
- Editing and Testing in Studio (Edit Mode)
- Disallow Copying of Your Game
- How to Publish/Upload a Place
- Group Games
- Creating and Making Games Public