Can I play Ninon the Upside-Down Mermaid in my browser?

Yes, on madame-photon.itch.io. Ninon the Upside-Down Mermaid does not run inside other websites, so the Play button opens it in a new tab. There is nothing to install.

Who made Ninon the Upside-Down Mermaid?

Ninon the Upside-Down Mermaid was made by Atelier in Wonderland and came out in 2026.

What games are like Ninon the Upside-Down Mermaid?

If you like Ninon the Upside-Down Mermaid, try Dragon Essence: Color My World, Odyssian Blaze and Tsuyu ga Akeru Made. There is a longer list on the “Games like Ninon the Upside-Down Mermaid” page.

Visual Novel · Browser game

Ninon the Upside-Down Mermaid

Released April 17, 2026 (7 months ago) · by Atelier in Wonderland

Play on madame-photon.itch.io ↗Steam

Opens madame-photon.itch.io in a new tab — it can’t run inside another page

About Ninon the Upside-Down Mermaid

In the underwater kingdom of Cerebrite, there live several mermaid princesses. One of them is Ninon, who was born in a peculiar manner unlike the other merfolk: she had the head of a fish, and the legs of a human. As such, the other merfolk shun her, and she feels out of place amongst even her own family. Meanwhile, Ninon herself carries a desire to see the world beyond her home of the White Sea, a desire that is granted in a most unorthodox fashion on the night of her 21st birthday, in the form of a chance encounter with a nobleman named Vivien Bellerose.

Screenshots and video

Tags and modes

Languages

English

Ninon the Upside-Down Mermaid: questions and answers

Can I play Ninon the Upside-Down Mermaid in my browser?: Yes, on madame-photon.itch.io. Ninon the Upside-Down Mermaid does not run inside other websites, so the Play button opens it in a new tab. There is nothing to install.
Who made Ninon the Upside-Down Mermaid?: Ninon the Upside-Down Mermaid was made by Atelier in Wonderland and came out in 2026.
What games are like Ninon the Upside-Down Mermaid?: If you like Ninon the Upside-Down Mermaid, try Dragon Essence: Color My World, Odyssian Blaze and Tsuyu ga Akeru Made. There is a longer list on the “Games like Ninon the Upside-Down Mermaid” page.