Biology  by Bradford
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Free · for your class

A picture, revealed one answer at a time.

Each right answer flips a few tiles off a hidden picture. Tick the topics your class has covered, or type your own questions in any subject, add a picture, and download a game students play in any browser: one file, no accounts, works offline.

Build one for your topicUse a ready-made one

Build one for your topic

Questions from the site’s checked question bank, or your own in any subject. Free.

Ready-made

Four packs, one per IB theme, each with its own picture. Load one, then change anything.
Step 01 Your questions Type them in, or import a CSV.
Drag a CSV here, or click to pick a file. Columns: Question, Answer, Hints (optional). Up to 25 rows. More than one answer can count: split them with a vertical bar.
0 / 10 questions Tab between cells. More than one right answer? Split them with |, as in ATP | adenosine triphosphate.
# Question Answer Hint (optional)
Step 02 The picture to reveal JPG, PNG, or WebP. Or use the example cell.
No image yet
Step 03 Game settings
Auto-scale to question count
Suggested grid: auto
cells per side
Higher numbers reveal more of the image per right answer.
Let students reveal the first letter, then the full answer.
Tracked separately on the final score, so "8 of 10 correct, 2 with hints, 1 skipped".
Shown at the top of the student’s game, and in its file name.
Bookmark or send to a colleague to come back to these exact questions and settings. A built-in picture comes with it; your own picture isn't included, so you'll drop it in again.
Step 04 Download & share
What's an HTML file?

It's just a webpage saved to your computer. Don't let the name scare you. Share it the way you'd share a PDF: email it, drop it in Google Classroom, post it to the shared drive, hand it over on a USB stick. Students double-click the file and the game opens in their browser. No internet needed after the download, no sign-in, no install. The whole game lives inside the file.

Example Try it. Answer a few questions, watch the cell appear.