Truth Detector
Answer Yes or No and guess how many others said Yes. Open the game in the browser, choose the format and start without long setup.
Mechanics
Truth Detector: online party game for groups
Answer Yes or No and guess how many others said Yes. Open the game in the browser, choose the format and start without long setup.
Last updated: June 26, 2026
Truth Detector
Answer first
Truth Detector: what to know
Best for
3-12 players, online, online game, warm-up, poll
Open Truth Detector
Start the game in a browser on a phone, tablet or laptop. Send friends the link or show the QR code so they can join from their own devices.
Limits
For remote play, each player should join from their own phone. In a loud group, use a separate voice call for conversation.
When it fits
Truth Detector in RoomPlay - party game for groups
This game fits groups that need a quick start: in an online room, online game, warm-up. RoomPlay points people to the playable game instead of a long rulebook.
Mechanics
Best for
onlineonline gamewarm-uppollvotingyes or no3-12 players
Quick start
How to play Truth Detector
Open Truth Detector
Start the game in a browser on a phone, tablet or laptop.
Create a room
Send friends the link or show the QR code so they can join from their own devices.
Set the pace
Prompts, words, timers, roles or hints are already inside RoomPlay.
Play with no install
No separate app download is required: the page leads straight to the game.
Formats
Truth Detector: online, with friends, no install
Play online or remotely
Truth Detector works for video calls and remote groups: players join by link or QR code.
For friends and parties
The format is made for 3-12 players, online, online game: start quickly at home, at a bar, on a call or before a meetup.
On separate devices
Players join from their own phones while the host controls the room and pace.
No app download needed
You do not need to hunt for a separate group app: Truth Detector starts directly in the RoomPlay browser experience.
Related scenarios
Situation picks
Situation picks
House party games with no setup
When guests are already there, the best games need one phone, short rules and lots of conversation.
Situation picksOnline party games for video calls and QR rooms
Remote groups need rooms, easy joining and clear shared flow. These games work for Zoom, Discord or Telegram calls.
FAQ
Truth Detector questions
Can you play Truth Detector online?
Yes. Truth Detector can run in a RoomPlay online room: friends join by link or QR code and play from their own devices.
Is Truth Detector good for a group of friends?
Yes. Truth Detector works when friends or a group want to start quickly: 3-12 players, online, online game. Open the game, explain the flow in a minute and start.
Do players need to download an app?
No. Truth Detector runs in the RoomPlay browser experience with no app install. Open the link on a phone or laptop and play.
Can you play Truth Detector remotely?
Yes. Use the room link or QR code so players can join remotely from different places.
How many people can play?
It depends on the room and mode. Larger groups usually work better when players join from their own phones.