im bored of blowing up stuff, i want to create stuff!

i have spotted a mod "Realistic Physics mod" and it maybe does the thing i want to do, but it's too old and i mostly fail with making stars

lincolnram:

The galaxy toy mod by RCAproduction may help. https://powdertoy.co.uk/Discussions/Thread/View.html?Thread=23836&PageNum=0#Message=310536

 thanks! I'll try it