Observed arrival · 2026-10-17
Guess the Real Size
A free browser game asks you to estimate one country’s area relative to another across five untimed questions.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People practicing country-area intuition
- Worth noticing
- Its 12-country mode uses the same Natural Earth 1:50m boundary dataset for outlines and answer ratios.
Field notes
The country mode draws from 12 countries and 20 possible question pairs, with five shuffled into a round. Guesses can be entered through a touch-or-mouse slider, arrow keys, or a numeric field; scores range from 0 to 100 per question, and the round is held only in memory, so refreshing restarts it. The page says there is no leaderboard or permanent best-score storage.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
One card from the complete issue