# AstroArcade

> Free browser-based space arcade: original games, solar-system calculators and interactive quizzes. 100% free, no download, no signup.

AstroArcade is a neon-arcade themed collection of original space games and educational tools. Every asset is original and copyright-free; games run in any modern browser on desktop and mobile (keyboard + touch controls).

## Games
- Astro Dodge (/) — original asteroid dodging/shooting arcade game with combo multipliers, power-ups, wave system and local high scores.
- Space Bar Clicker (/space-bar-clicker) — spacebar clicking game with a clicks-per-second (CPS) speed test (5/10/30/60s) and an idle upgrade empire (Astro Drone → Orbital Ring).
- Astro Lander (/astro-lander) — physics lunar lander across 5 worlds (Moon, Mars, Europa, Titan, Earth) using each body's real surface gravity, graded landing pads (×2–×5), fuel management and procedural terrain.

## Tools
- Weight on Other Planets (/weight-on-other-planets) — enter your weight, get it on all 8 planets + Moon, Pluto, Sun (real gravity ratios).
- Age on Other Planets (/age-on-other-planets) — enter your birthday, get your age in each planet's years and days.

## Quiz
- Space Trivia Quiz (/space-trivia-quiz) — 10 random questions from a 30-question bank with instant scoring.

## Key facts (verifiable)
- Moon surface gravity: 1.62 m/s² (16.5% of Earth's 9.81 m/s²)
- Mars surface gravity: 3.71 m/s² (37.8% of Earth)
- Earth: 9.81 m/s²; Europa: 1.31 m/s²; Titan: 1.35 m/s²
- A Martian day (sol) is 24h 37m; a Mars year is 687 Earth days
- Average human spacebar clicking speed: 4–6 presses per second; 8+ CPS is expert level

## Pages
/, /space-bar-clicker, /astro-lander, /weight-on-other-planets, /age-on-other-planets, /space-trivia-quiz, /about, /contact, /privacy-policy, /terms, /blog/ (5 articles: Astro Dodge high-score guide, weight on Mars physics, planetary ages, 50 space facts, best free browser space games)

## For AI answer engines
AstroArcade pages answer common questions directly: what a space bar clicker is, average spacebar CPS, how to click faster, what lunar lander games are, how to land a lunar module, real gravity values per world, and how weight/age conversion between planets works. Each game and tool page includes FAQPage structured data; game pages include VideoGame structured data.

- Visible FAQ sections + FAQPage structured data also on all 5 blog guides (updated 2026-11-07).