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MONOWAVENewsMeet Prism in MONOWAVE’s Co-op Trailer
Community

Meet Prism in MONOWAVE’s Co-op Trailer

MONOWAVE · published 16 Sep 2026, 09:44 UTC

All newsPlayers around this dateRead on Steam

Mono could use a little help, too.

Our co-op trailer introduces Prism, the companion you’ll control as player two.

Watch on YouTube

You play Mono. Your friend plays Prism.


While one of you guides Mono, the other can fly freely around the same screen as Prism, passing emotions to nearby creatures and helping with the puzzles. Block incoming projectiles or become a platform to help Mono across a tricky gap.

Together, you’ll help the spirits you meet work through their feelings. The full adventure is playable solo or in local two-player co-op.

Not in the same room? You can still play together.


MONOWAVE supports Steam Remote Play Together. Only the host needs to own and run the game. Your friend can accept an invitation and join without buying their own copy.

Launch the game, then invite your friend from your Steam Friends List. An internet connection is required, and your experience will depend on connection quality.

Before you play

  • Play solo or in local two-player co-op.
  • On PC, use two controllers or a keyboard and a controller.
  • Invite a friend online through Steam Remote Play Together.

MONOWAVE launches on Steam on September 16.
Add it to your wishlist if you’d like to play, whether on your own or with a friend.

More from MONOWAVE

Other announcements

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Steam news16 Sep 2026MONOWAVE is out now!MONOWAVE is out now on Steam! After more than three years of development, we can finally share the full adventure with you. Thank you to everyone who played a demo, stopped by our booth, or followed us along the way. Meet Mono, a newborn guardian spirit In this puzzle-platforming adventure, Happiness, Sorrow, Anger and Anxiety each give Mono different abilities. Sing to share those feelings wit…