Press & streamers
Press kit
Size Comparison Game is a free browser game: resize a real object beside a fixed reference, then see its true size on one shared scale.
Key facts
- Free to play in any modern browser. No sign-up, no download.
- A new daily set of five comparisons, the same for everyone, plus unlimited rounds and category modes such as animals, buildings and space.
- 131 real-world objects, from coins to planets. Every size comes from a published source that players can open after each answer.
- Scoring compares your estimate with the real size as a ratio: half or double the answer earns 50 of 100 points.
- Results are shared as spoiler-free emoji squares, and challenge links let a friend play the same five.
- First released on 27 September 2026. English only.
Gameplay and images
You may use these images and your own screenshots to write about, review or stream the game. Object artwork credits are listed with each object’s source and in the artwork licence file.
Streamer mode
Add ?streamer=1 to any game address, for example sizecomparisongame.org/?streamer=1, to get larger type and a bigger board that fits a 16:9 capture, with nothing below the game. Streamer mode lasts for the browser session; add ?streamer=0 or use Exit under the title to leave it. The daily set is the same for your chat, so viewers can play along and compare scores.
Contact
For interviews, corrections or anything else, email [email protected]. This address is the only official contact for the game.