KRACKO

Sound and observation

How to play Doppler.

Move two numbered tone sliders until your wave matches the target. Sound is optional.

Play Doppler free ↗

Your first game

  1. Try the untimed guided sample on the setup screen first.
  2. In a real game, compare the target above with your mix below. Adjust one tone at a time.
  3. Choose two different tones and press Check match when the shapes look the same.

A useful starting strategy

Compare the peaks and quiet gaps in the two waves. The + and − buttons let you make small adjustments.

Can I play on my phone?

Yes. KRACKO supports mobile touch controls and desktop play. Use Install app on the home screen for installation options. Online rooms require an internet connection.

Do I need other players?

Choose Solo to learn without waiting, or use the online setup for a private friend room or public search. Matchmaking depends on available players. Solo and online rules can differ; read the selected briefing.

Games are free to play in the current release. Read the in-game rules for the settings and limits of your chosen format.