If you want to use an existing character model, you’ll need to find one in the Models section of Roblox Studio. From here, simply search for 'Character' and pick one before dragging it into your ...

Inside Roblox Studio, you can create new games by clicking + New tab on the left hand bar. This will bring up a series of templates for you to work from that can be sorted by theme or gameplay style.

According to Roblox Studio, all users are free to create as many experiences as they wish, but each account is only allowed to have 200 publicly playable experiences available at any given moment.