This isn't planet level, but shows surface: https://universesandbox.com/. - Source: Hacker News / 3 months ago

Someone's been having fun playing with Universe Sandbox. Source: 12 months ago

I wonder if it can be run on a gaming GPU? One of my wish list games is ‘universe sandbox’ https://universesandbox.com/. Source: over 1 year ago

Planets and solar systems are buildable with Universe Sandbox (steam), I used it for my main setting. Source: over 1 year ago

I created Universe Sandbox, a realistic physics-based space simulator. I started working on the idea as a side project just for fun back in 2007 and released it on my website for free in 2008. I later transitioned that to a name-your-own-price model and then to a fixed price. When it (now known as Universe Sandbox Legacy) was first released on Steam in 2011, it sold more in the first hour than I'd sold on my... Source: over 1 year ago

Citizen does this (https://citizen.com) I used it for a bit, and it had decent UX, but it seems designed to raise your anxiety until you pay for a snake oil subscription. YMMV. - Source: Hacker News / 6 months ago

I hear sirens! The Phoenix Fire Board is a real-time list of car accidents (Code '962'), fires, and hazardous situations. You can also check out the Citizen App that people use to report things happening around them. Source: about 1 year ago

Https://citizen.com I’m guessing this is what they’re talking about. Source: about 1 year ago

They don't. Citizen App probably what you want, but it's only useful in big cities. Source: about 1 year ago

Should I also "chill out" and not tell them about https://smart911.com, https://www.911cellular.com, https://active911.com, https://citizen.com, and all the other emergency related services out there?! Source: about 1 year ago