FREE ONLINE DETECTIVE GAME

Find the
false alibi.

Four witnesses. One story that does not hold up. Interview, inspect, and prove the contradiction in six original Signal Room mysteries.

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A theatre workshop filled with handmade props

TODAY'S SHARED FIVE Human or AI Daily Start question one

A painted radio room overlooking a stormy lighthouse

SIX CASE FILES RADIO MYSTERY Signal Room Find the statement the evidence disproves. Play the case

An original Queens puzzle with lettered colored regions

DAILY LOGIC · UNLIMITED PRACTICE

A home for every crown.

One crown in each row, column and region. None may touch. Play today's shared Queens puzzle, then try 6×6, 7×7 and 8×8 boards with undo and explained hints.

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Original boards. No account. Share the same puzzle with a friend.

CHAT & MYSTERY GAMES

Games that answer back.

Every game begins with a clear goal, works without an API key, and gives you a useful next move when your first idea fails.

Play the case

Radio mystery

Signal Room

Interview four witnesses, inspect the records, and prove which alibi cannot be true.

Test the oracle

Twenty questions

Oracle 20

Think of something. The brass owl has twenty questions and a suspiciously good memory.

Start the heist

Social stealth

Velvet Heist

Talk past a watchful security system before suspicion locks the museum down.

See every chat and mystery game

ONE PASSAGE. ONE CALL.

HUMAN OR AI

Read the words.
Then check the source.

Five short passages, one shared daily set. Decide whether each text was written by a person or generated for the game, then reveal its source notes.

Play today's five Explore every mode

PLAYTESTED HERE

The rough shelf.

These are raw one-button studies, not Editor's Picks. Some explain very little and end abruptly. We keep them labelled so you know exactly what you are opening.

Browse 61 experiments

Human or AI Chat Simulation Puzzle Arcade