- The Steam Store Page for The Demon Party, the Sequel to Debugging Hero, Is Now L - 3 June 2026
Hello! We are Team ETTU, an indie game development team.We are happy to announce that the Steam store page for The Demon Party, our new game and the sequel to Debugging Hero, is now live!The Demon Party is a roguelite action game set in the world after the events of Debugging Hero. Following the events of the previous game, the Demon Lord has disappeared, and the Demon Lord’s Castle has fallen into chaos as monsters wage a civil war to claim the throne.Players take on the role of Lethe, a young Demon girl who was once the Demon Lord’s younger sister, and use her power of domination to subjugate defeated monsters and form a party of her own.Dominate Defeated Monsters and Turn Them Into AlliesLethe can use her power of domination on enemies defeated in battle. Dominated monsters recover their health, become allies, and immediately join the player’s side in combat.Not only regular monsters…
- We are currently working on a sequel to Debugging Hero! - 30 March 2026
Hello, this is Team Ettu.Thanks to all of you who enjoyed Debugging Hero, our small indie team has been able to step away from some of the practical challenges and focus more on development.We are currently developing a sequel, “Demon Lord Party,” which continues the story after the ending of Debugging Hero.Please look forward to the story of Mori’s younger sister, Lethe!We’ll be back next time with news about the store page.Thank you!
- Bug Fixes - 26 February 2026
Improved stability of camera-related code
- Hotfix - 11 January 2026
Fixed an issue where the Demon Lord recruited as an ally in a previous run caused problems in subsequent endings.
- Hotfix - 19 December 2025
Fixed a memory leak occurring on the save and load screens.
- Hotfix - 11 December 2025
Fixed an issue where debugging information for projectiles was displayed incorrectly in certain situations.Fixed an issue where loading the map for Stage 4 could take longer than intended.
- Bug Fix - 8 December 2025
Fixed an issue where the practice bandit monster unintentionally evolved into an Elite monster during the first tutorial run and intruded into the cutscene.
- Hotfix - 5 December 2025
Fixed an issue where the game would close during the ending when an error occurred in the conversation with the Holy Sword.
- Major Update [2025/12/04] - 4 December 2025
Codex Added- Added Item Codex where you can check item effects and stories- Added Character Codex where you can check character stories- Added 2 new achievements related to the CodexNG+ Mode Added- Added NG+ mode, allowing you to start a new game while keeping your progress after clearing the gameVariable Card Mechanism Changes- Added level-up UI for enhancing variable card values- Levels can appear as a low-chance reward from stage clear- The former boss-clear bonus that enhanced variable cards is now changed to a basic level-increase effectItem AdjustmentsThrowing Dagger- Removed the previous effect that converted negative debugging on ally projectiles into positive effects- Added an effect that applies positive attack-power debugging for ally projectiles to all other ally projectiles as wellSignal Flag- Removed the previous effect where positive attack-power debugging for ally projec…
- We’re working on the Codex feature! - 3 November 2025
As one of the upcoming contents in the next update,we’re developing a Codex where you can check not only character and item information,but also read more detailed story backgrounds.We’ll also add support for other languages soon!We’re also preparing new event maps with special choices,and a New Game+ system that lets you restart the game from the beginningwhile keeping your growth progress — and face even stronger enemies!NEW GAME +1!Along with various other improvements,this update is planned for late November.Please look forward to it!
- Hotfix - 11 October 2025
Fixed an issue where Kirara became unresponsive on the Game Over screen if her HP reached 0 at the same time a stage was cleared.
- Update [2025/10/03] - 3 October 2025
Item AdjustmentsHero's EmblemThe effect that reduced the experience gain penalty based on the number of Novice Heroes has been changed to an effect that increases Novice Heroes’ experience gain.Ring of LifeRemoved the Max HP Debugging effect.When allies are at full Max HP, applying Positive Debugging to \ increases \ by 20%–40%.Special Card AddedA new Max Hp Enhancement Card has been added to Map-Clear Rewards.This card increases the selected character’s \.New ItemsMagic Stone OreAn item with a unique mechanic that amplifies enemies and then absorbs the amplified stats.Amplifies Positive Debugging values applied to enemy characters.When the affected enemy is defeated, Kirara’s corresponding stat increases by the amount of Positive Debugging applied.Flame TrapUpgrades Trap Cards so that traps placed by Kirara ignore a portion of enemy Defense.Poison TrapUpgrades Trap Cards so that traps…
- Update [2025/08/16] - 16 August 2025
Victory Illustrations AddedVictory illustrations have been added to the normal and hidden ending cutscenes.\The game result screen is now displayed even after clearing the game.Bug FixesFixed an issue where ally information was duplicated on the result screen in certain situations.Now, when the enemy’s maximum stun value is reduced through debugging, the stun value will also be reduced so it does not exceed the new maximum.
- Bug Fix - 15 August 2025
Fixed an issue where Easy and Hard difficulties were displayed incorrectly during mid-save.
- Bug Fix - 13 August 2025
Fixed an issue where certain mobs in Stage 3 would cause an infinite loop error.
- Minor Update - 12 August 2025
A cancel button has been added to Sophia’s item enhancement list. The delete button for variable cards during debugging has been changed from to .
- Bug Fixes - 10 August 2025
Fixed an issue where the Ribbon item was functioning weaker than its stated effect. Performed optimization work related to images.
- Bug Fix - 9 August 2025
Changing the "Menu" key to a mouse click in the Options screen will no longer cause the Options screen to close automatically when interacting with other buttons. However, clicking on empty space that is not an interactive button will still be recognized as a Menu key input, closing the Options button. A reset settings button has been added to the Options screen.
- Bug Fixes - 8 August 2025
Fixed an issue where boss clear achievements were not unlocking properly. Changed the default setting for the "Skip Viewed Cutscenes" option to be disabled at the start.
- Major Update [2025/08/08] - 8 August 2025
Mid-Stage Save AddedA map where you can perform a mid-stage save will now appear right after boss battles. A total of 14 save slots are available, and difficulty settings will follow the configuration at the time of saving.Game Over Screen AddedA new Game Over screen now appears, showing a summary of your statistics. Cute Game Over illustrations have been added depending on the stage and boss.Cutscene System ImprovementsStory cutscenes will now play when you get a Game Over in a boss battle. A Cutscene Replay menu has been added to the main menu. An option to skip previously viewed cutscenes has been added to the settings. \Level Design ImprovementsDepending on the difficulty, regular enemies may now be replaced with elite enemies that have more challenging patterns. The appearance rate of elite enemies can be adjusted in Custom Difficulty. With the addition of mid-stage saves, more lat…
