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MONOWAVENewsMONOWAVE is out now!
Steam news

MONOWAVE is out now!

MONOWAVE · published 16 Sep 2026, 15:00 UTC

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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.

Watch on YouTube

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 with nearby spirits, then use their reactions to solve puzzles and open new paths.

Across four worlds, you’ll meet four Emotion Spirits, each overwhelmed by one feeling. Help them make room for the others.

Play solo or bring a friend


The full adventure is playable solo or in local two-player co-op. One player controls Mono, while the other flies alongside them as Prism, sharing emotions and helping with puzzles.

  • Local co-op: Play with two controllers, or a keyboard and a controller.
  • Steam Remote Play Together: One player owns and runs the game, then invites a friend from their Steam friends list. Your friend does not need a separate copy. A stable internet connection is recommended.

Thank you for being here


We’ve met so many of you at events and through the demos. Today, we get to send Mono out into the world with you.

If you’d like to share a moment from your adventure, we’d love to see it. You can also leave questions or report issues in the Steam discussions.

Take the music with you


The MONOWAVE Original Soundtrack brings together 38 tracks, from the main theme to the music of the four Emotion Spirits. Listen again to the moments you remember, even after you leave the game.


Join us on Discord


Share screenshots, talk about your favorite spirits, or find someone to play with in our Discord.

Join the MONOWAVE Discord

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Community16 Sep 2026Meet Prism in MONOWAVE’s Co-op TrailerMono could use a little help, too. Our co-op trailer introduces Prism, the companion you’ll control as player two. 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. Toget…