Steam

HEART ABYSS

Also known as HEART ABYSS, ha, heart abyss

Heart Abyss is a brutal action-platformer inspired by Japan during the 17th and 18th centuries. Wake up your inner beast and take vengeance on those who put a collar around your neck. Find your sister and uncover the mystery behind the disappearance of all jinkos.

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Last update

20 Jun 2026

Latest update

AnnouncementPublished 08 May 2026

Leon’s cage slams shut on May 12th!

Hey everyone! The HEART ABYSS team is here! We’re sorry to tell you, but the Open Playtest will wrap up on May 12th at 13:00 UTC. It’s time for Leon to return to his cage! You still have a few days to conquer the Iwamot…

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Update history

Browse past updates and patch notes for this game.

20 updates

April 2026
Unchain Leon in The HEART ABYSS Open Playtest!Hey everyone! The HEART ABYSS team is here! We haven’t just been sitting around. We’ve been hard working on prepp an Open Playtest for you! Starting today, you can dive headfirst into Leon’s journey. A Whole New Level!…Announcement7 changesGameplay28 Apr 2026
January 2026
Hey everyone! The HEART ABYSS team continues to work hard on the game, and in this post, we'll tell you about our recent achievements. By the way, we've already opened registration for the playtest! Join us! And now, on…3 changesGameplayBalancePatch notes27 Jan 2026
December 2025
Hey everyone! Here’s another portion of news about the development of HEART ABYSS. A New Level Is Ready! We’ve finished working on a major level — the Capital of the Empire. After Leon fought his way out of the Mansion,…2 changesGameplayPatch notes02 Dec 2025
November 2025
Ramen-ten "Heart Abyss" is out!Hello everyone! Ramen-ten "Heart Abyss" is available, and we invite you to join us at our wonderful ramen shop for first-class service. This is a game that always comes with you, no matter what you're doing. Work, study…Event1 change06 Nov 2025
October 2025
Announcement of the game’s release date (but a different one)Hey everyone! The work on the main game is in full swing — we’ll be sharing our progress very soon. But for now, we have a small and tasty surprise for you. It’s a little side project made by our team for your fun and c…Event3 changesGameplay22 Oct 2025
July 2025
Hey everyone! It’s been a while since our last update, and we haven’t been sitting still — we’ve been hard at work on two major levels: the Mines and the Temple. New Levels Gameplay-wise, these levels are ready, but the…9 changesGameplayBalancePatch notes02 Jul 2025
April 2025
Hello everyone! We know you’ve been eagerly awaiting news about the game and its development, so we’ve decided to keep you in the loop with regular updates. And today’s news is absolutely on fire! We’re thrilled to anno…3 changesGameplayStore01 Apr 2025
March 2025
Hello everyone! It’s time for the latest updates from the development of HEART ABYSS! Yes, we’re still alive and kicking, working hard on the game, and it’s set to be released (when? In due time!). Leon’s enemy ranks ar…2 changesGameplayStore24 Mar 2025
February 2025
Results of the Creative Contest! And a Valentine’s Card❤️Hello everyone! Last week, we announced a contest where you had to come up with a name for our new enemy, affectionately known as ““Pudge.” After careful discussion, we decided on the name Kibishi Fukku (from Japanese:…Announcement2 changesGameplay14 Feb 2025
Hello everyone! In our last post, we introduced you to our new enemy, who has been affectionately dubbed “Pudge” in the backchannels of our work chats. Just a reminder, he’s armed with a sharp hook that he flings around…2 changesGameplayPatch notes06 Feb 2025
December 2024
Hello everyone! The year 2024 is coming to a close. It’s been a challenging yet productive year for our team. Despite the hurdles, we’ve made significant progress on the game’s development. While the release is still a…15 changesGameplayBalancePatch notes27 Dec 2024

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Leon’s cage slams shut on May 12th!

April 2026

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November 2025

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December 2024