Imposter Game for the Classroom

Updated 14 October 2026

The imposter game for the classroom is a quick, low-prep speaking activity that gets every student thinking about what words really mean. All students in a group get the same secret word except the imposter, who gets a similar one. Each student gives one clue, then the group votes on who doesn't fit. It takes about five minutes a round, needs no printing, and works for vocabulary practice, ESL lessons and subject revision.

Why teachers use it

• Precise vocabulary. To give a good clue, students must think about what makes a word different from a close neighbour – Biology versus Chemistry, Microscope versus Telescope.
• Everyone speaks. The app picks a random first speaker and a speaking order, so quieter students get a turn without being singled out.
• Listening and reasoning. Students must listen to every clue and justify their vote.
• Zero admin. Free, no student accounts, no ads, no download. It runs in any browser and pass-the-phone mode works offline after the first visit.

Vocabulary practice and ESL

For language learners, the imposter game is a natural way to practise describing words. The built-in School pack is a good starting point. Some real pairs from it:

For beginners, the Kids (Easy) pack uses simple everyday nouns like Spoon/Fork and Hat/Scarf. Ask students to use a sentence frame, such as "It is used for…" or "You find it in…", so they practise full sentences. Packs like Food, Animals, Jobs and Household Objects are also handy for topic-based units. See them all on the imposter game words page, or the full School pack.

Play the School pack

Subject-specific custom packs

The game becomes a revision tool when you write your own pairs. Use "My custom words" to add pairs from your current topic, then share the pack as a link with your class or other teachers. Ideas:

• Science: Mitosis/Meiosis, Atom/Molecule, Evaporation/Condensation, Artery/Vein.
• Geography: Weather/Climate, Latitude/Longitude, Tributary/Estuary.
• History: two empires, two revolutions or two leaders from the same period.
• Maths: Area/Perimeter, Mean/Median, Prime/Odd.
• Languages: pairs of words students often confuse.

These are example pairs for your own custom pack, not built-in ones. The best pairs share a category but have one clear difference, which is exactly what you want students to articulate. For instance, with Artery/Vein a civilian might say "Away from the heart" (too revealing) or "Thick walls" (good), while the imposter says "Valves" – which fits their word and makes everyone think.

Timing and class sizes

Pass-the-phone mode handles 3–20 players on one device, but whole-class games of 30 are slow. Two better options:

Split into groups of 5–8

Give each group one device (a class tablet or the teacher's phone for one group while others use another). With 5–7 players the app recommends 1 imposter; with 8 it suggests 2. Groups can all play the same pack, then compare clues afterwards.

Use online rooms on student devices

If students have tablets or laptops, create an online room and display the QR code or 6-character code on the board. Up to 15 players can join a room, and everyone sees their word and votes on their own screen. Run two rooms for a full class. If a device refreshes, the student rejoins the same seat.

Suggested lesson timing

• 2 minutes: explain the rules with one demo round (see how to play).
• 15 minutes: 3–4 rounds in groups, with the discussion timer set to 1 or 2 minutes.
• 5 minutes: whole-class debrief – which clues were best and why?

Big-screen mode lets you cast the game to the classroom display for a demo round everyone can follow.

Behaviour and fairness tips

• Clues, not accusations. Set a rule that students explain votes with evidence ("Their clue didn't fit because…").
• Secret vote stops popular students from swaying the group. Each student votes privately on the passed device.
• Strict mode makes each player set a personal PIN the first time they reveal, which stops peeking.
• Keep scoring light. Points are tracked automatically, but you can turn it into a team challenge rather than an individual leaderboard.
• Content is classroom-safe. The only adult pack, "Party (18+)", is hidden behind a toggle and never on by default.

Teaching younger pupils? The imposter game for kids page has more tips for early readers.

FAQ

Do students need accounts?

No. There is no login. Students just open the link or scan the QR code.

Can I make a pack for my subject?

Yes. Add pairs in "My custom words" and share the pack as a link with students or colleagues.

How many students can play at once?

Up to 20 on one device or 15 per online room. For a full class, split into groups of 5–8.

Is it suitable for ESL learners?

Yes. Start with the Kids (Easy) or School packs and use sentence frames for clues.