This guide will show how to make a brown dwarf without cooling down a star in the adding section but with jupiters.
Guide to Making a Brown Dwarf
In this guide, I will show you how to make a brown dwarf with no small star but with 3-5 jupiters.
You need to create a jupiter using the add tool.
You need to enable gravity and collisions, then form another jupiter, it should pull it in and 1 jupiter should survive the collision.
Keep using jupiters to colide with eachother, you need to run about 3-5 jupiters to make a brown dwarf, if you wanna keep it a brown dwarf without cooling down you need a star, use the sun for example.
Depending on what planet you use it may need more of the planet to create the brown dwarf, jupiter is the best.