
Heart's Depth - DEMO
A downloadable mermaid otome for Windows, macOS, and Linux
THIS IS A DEMO MADE FOR THE OTOME GAME JAM (UPDATED)
When you return to your childhood vacation home to visit your grandfather, your past comes up to meet you in unexpected, aquatically terrifying ways. As protagonist, you are confronted with the reality of what it means to be thrust into the darkest depths of the sea. After seeing the treatment of mermaids above (trapped, despised, eaten), how will you navigate the seas below as a human-turned fish? Will you follow your heart and see this through? Or succumb to the deep?
- 10k+ words
- Customizable first name for protagonist
- Beginning of common route with 4 routes planned
- 4 hot men, three mermaids and a human (grandpa isn't dateable, sorry)
- Lovingly crafted sprites and backgrounds by our artists!

- Depictions and descriptions of blood
- Descriptions of violence towards fish/mermaids
- Descriptions of gore
- Gory and bloody imagery !!!
- Mention of consumption/eating mermaids/humanoid fish people
- Flash warning! Abrupt flashes will occur during some parts of the game.





- Zenith (Director, Writing, Coding, Production)
- Alibun (Co-Director, Character Art & Writing)
- Em (Lead Character Art, Writing & Production)
- Sojin (Environment Art & Character Art)
- Yuja (Environment Art & UI Design)
- Mango (Environment Art)
- Laura (Environment Art)
- Alyssa (Writing)
- Lu (Coding)
- Lemniscate (Editing)
- Justin (Voice Acting & Editing)
- Beasley (Voice Acting)
- Ren'py 8.2.1
- Gaming Variety Potato for some wonderful UI templates
- Ren'py Action Editor 3
- Speech Pauses by Kigyo
Planned Features:
- Voice acting
- Original music and SFX
- More CGs and more backgrounds!
- Secrets and more.....

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Updated | 9 days ago |
Status | In development |
Platforms | Windows, macOS, Linux |
Rating | Rated 4.4 out of 5 stars (9 total ratings) |
Authors | Zenith, Ali Bun, flrmstr, Mango, Vylphix, araetzel, Em, idioticduck |
Genre | Visual Novel |
Made with | Ren'Py |
Tags | Amare, Dark Fantasy, Dating Sim, Fantasy, josei, mermaid, Otome, Romance, Story Rich, underwater |
Average session | About an hour |
Languages | English |
Inputs | Keyboard, Mouse, Gamepad (any) |
Links | Homepage, YouTube, Twitter/X, Bluesky, TikTok |
Download
Install instructions
Extract the zip file and run Hearts-Depth-DEMO.exe
Development log
- OUT NOW: Heart's Depth 2.0 Update18 days ago
- SOON: Heart's Depth Update 2.033 days ago
- HAPPY HOLIDAYS!!!!!68 days ago
- Preview of Next Update71 days ago
- 1.2.1 HOTFIXOct 25, 2024
- OUT NOW: Heart's Depth 1.2 UpdateOct 25, 2024
- SOON: Heart's Depth UpdateSep 23, 2024
- THANK YOU!!!!!Jul 08, 2024
Comments
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So far the story is an interesting one.
I wouldn't mind seeing more of it, when it comes out. ^_^
(I also adore the ocean, and there is far too few games where you can explore an underwater world.)
Tho the 'uncle' clearly messed up his spell. He can't have undone the curse, merely changed your shape.
I wonder if you'll be able to tell them what happened.
(As interesting a change as it is, I am a very vengeful person. And I REALLY want to get back at that seat witch. >_>
I don't even care what she wants, I just want to make sure she'll never have it, and ruin her plans, her life, and everything she holds dear! )
....that said, the prince was interesting, what little I could see.
Tho far too compassionate for my tastes.
But I doubt the thief would be any better.
Games like this rarely lets you date the wicked villains.
And if the sea witch turns out to be the villain, it wouldn't work anyway, as it was a rather bad meeting. lol
Either way tho.... I look forward to see more content. ^_^
Hopefully with the chance to see more of the underwater world.
Sea and romance, mermaids and dangers - what else could you ask for? I really hope that this development will continue and the game will eventually appear on Steam. The world building, art and atmosphere captured me completely. Thank you for sharing your creativity!
Thank YOU for playing!! Eventually the plan is to put it on Steam when all is said and done. We hope you enjoy the upcoming updates :) Thank you for such a nice comment!!
Hoping to see more of the game!
We're excited to make more of the game! Stay tuned for our next update :D
This is such a pretty game and story!!
Thank youuu!!
Very nice art ! :)
Thank you~ ^^