Who is Luna Space Simulator for?

Luna Space Simulator is a consumer product built for space enthusiasts and students.

Is Luna Space Simulator free?

Yes — Luna Space Simulator is free to use.

What platforms does Luna Space Simulator run on?

Luna Space Simulator runs on the web.

Is Luna Space Simulator still active?

Unverified. Luna Space Simulator has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Luna Space Simulator?

Similar projects tracked by PulseGate include Codere, Cube Master 3D - Sorting Games, and Home Makeover.

Who makes Luna Space Simulator?

Luna Space Simulator is developed by Watermelonson.

How long has Luna Space Simulator been around?

Luna Space Simulator first shipped in 2024.

Back to the index

Luna Space Simulator

Name: Luna Space Simulator
Author: Watermelonson

watermelonson.comGames

Luna Space Simulator is a free browser-based physics sandbox. It uses real-time N-body gravity calculations allowing users to rearrange planets, add stars, launch rockets, and observe realistic orbital behavior. The simulator includes features like rocket staging, atmospheric scattering visualization, and the ability to explore real exoplanetary systems. It runs on both desktop and mobile browsers.

FreeWeb

Visit watermelonson.com

Overview

4 features

Luna Space Simulator is a Games project. It focuses on experimenting with realistic gravitational physics, orbital mechanics, and planetary system design in an accessible sandbox. It is built as a consumer product for space enthusiasts and students. Luna Space Simulator costs nothing to use. Luna Space Simulator is available on the web.

Behind Luna Space Simulator is Watermelonson, and it first shipped in 2024. Key capabilities include N-body physics, rocket building, and atmospheric simulation.

Summary written by a language model from the project’s public pages.

N-body physics
Rocket building
Atmospheric simulation
Procedural planets

Built with & integrations

Hosting

Cloudflare

Runs on

Browser

Detected from

Cloudflare: cf-ray header · cf-cache-status header

Trust & compliance

Verified signals

HTTPSPrivacy PolicyFree tier

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed29 Jul · 13:02 UTC
Show HN: The space simulator that I showed here first has had lot's of updates verified against its public source
Source: PulseGate · Open

Frequently asked questions about Luna Space Simulator

What is Luna Space Simulator?: Luna Space Simulator focuses on experimenting with realistic gravitational physics, orbital mechanics, and planetary system design in an accessible sandbox. It is catalogued under Games on PulseGate.
Who is Luna Space Simulator for?: Luna Space Simulator is a consumer product built for space enthusiasts and students.
Is Luna Space Simulator free?: Yes — Luna Space Simulator is free to use.
What platforms does Luna Space Simulator run on?: Luna Space Simulator runs on the web.
Is Luna Space Simulator still active?: Unverified. Luna Space Simulator has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Luna Space Simulator?: Similar projects tracked by PulseGate include Codere, Cube Master 3D - Sorting Games, and Home Makeover.Codere Cube Master 3D - Sorting Games Home Makeover
Who makes Luna Space Simulator?: Luna Space Simulator is developed by Watermelonson.
How long has Luna Space Simulator been around?: Luna Space Simulator first shipped in 2024.

At a glance

Platforms: Web
Languages: English
Built for: space enthusiasts and students
Model: B2C
Solves: Experimenting with realistic gravitational physics, orbital mechanics, and planetary system design in an accessible sandbox.

Developer

Watermelonson

Live coverage

Identity confidence: High · 90.8
Indexed: 29 Jul 2026
Lifecycle: Alive
Last seen: 29 Jul 2026

Identity audit (13)

Slug: show-hn-the-space-simulator-that-i-showed-here-first-watermelonson-com
Lifecycle state recorded: 29 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 29 Jul 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 29 Jul 2026
Canonical URL: https://luna.watermelonson.com/

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