This isn't planet level, but shows surface: https://universesandbox.com/. - Source: Hacker News / 2 months ago

Someone's been having fun playing with Universe Sandbox. Source: 11 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

Head to https://paywithmoon.com/ and sign up. Source: over 1 year ago

I am the founder of paywithmoon.com. Source: over 1 year ago

Moon might be a good option for you. They offer prepaid, non-reloadable debit cards that are paid for in BTC. Best of all, there’s no KYC at all, and they can even be added to Apple Pay or Google Pay. I quite like it, I think it’s pretty neat. Source: over 1 year ago

3) As a last resort, there are tools to make sats to fiat payments, like https://allark.io/ https://paywithmoon.com/ or https://www.coindebit.io/. Source: over 1 year ago

Use paywithmoon.com to create virtual Visa card(US merchants only!) Use bestchange.®u to exchange rubles to Bitcoins and send them to Moon. Source: over 1 year ago