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Watch trailer on Steam ↗Debugging Hero
Team ETTU · Published by Team ETTU
Very Positive — 87% positive (311 reviews) · 30 achievements
Last updated 3 Oct 2026
As the Debugging Hero chosen by the Legendary Sword, you have gained the ability to manipulate character variables! Use this powerful ability to overcome the dungeons blocking your path and defeat the Demon Lord!
£8.50
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Price history
Action, Adventure, Indie · 2025 · More £5 - £15 games
Embark on a unique journey as Debugging Hero, wielding the power to change character variables in this thrilling adventure. Navigate treacherous dungeons and face off against the formidable Demon Lord.
About this game
As the Debugging Hero chosen by the Legendary Sword, you have gained the ability to manipulate character variables!
With your variable manipulation abilities, you can enhance your stats such as attack power and speed.
Not only that, but you can also set a monster's HP to zero for an instant kill or alter its hostility to turn it into an ally.
Use this powerful ability to overcome the dungeons blocking your path and defeat the Demon Lord!
Utilize variable manipulation cards composed of operators and numerical values to directly alter character stats.
Addition Card: Boost your attack power or recover lost health.
Subtraction Card: Weaken the enemy's stats or reduce their health.
Multiplication Card: Greatly amplify critical stats to turn the tide of battle in your favor.
By creatively using variable cards, you can drastically reduce trap delay and boost their power to turn them against enemies, or even reduce incoming projectile damage to zero.
Design your combat strategies using variable cards in various ways!
Once you've created advantageous situations using variable manipulation, it's time to take on your enemies directly!
Feel the satisfying impact of combat and defeat all the foes that stand in your way!
Game items come with unique special effects, and some rare items even unlock the ability to manipulate additional stats beyond the basics.
Drastically increase your movement speed or reduce the boss monster's speed to zero.
Manipulate hostility to turn enemies into allies.
Add new stats like stun damage to incapacitate monsters in combat.
Combine the unique effects of various items to create your own strategies and enjoy thrilling battles like never before!
System Requirements
Will my PC run this? →Minimum
- OS: window 10
- Processor: Duel core 2Ghz+
- Memory: 8 GB RAM
- Graphics: Nvidia GT 1030+
- Storage: 500 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
The Steam Store Page for The Demon Party, the Sequel to Debugging Hero, Is Now L
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, but also powerful elite enemies and boss monsters can be dominated. Defeat threatening foes, subjugate them, and turn them into Lethe’s loyal minions.Build Your Demon Party With a Variety of MonstersMonsters have different stats, skills, and traits depending on their type.Some monsters can protect allies with high defense and taunt abilities, some can support the party with healing skills, and others can overwhelm enemies with powerful attacks.Players can dominate and combine monsters that fit their playstyle to build their own Demon Party.Grow Your Base and Raise a New Demon Lord ArmyAfter clearing a stage or reaching game over, Lethe returns to her base. At the base, players can manage dominated monsters, organize the party for the next battle, train monsters, and prepare items needed for combat.Dominate more monsters, grow your base, and raise Lethe’s new Demon Lord army.Please Add The Demon Party to Your Wishlist!Thank you once again to everyone who played Debugging Hero. If you are interested in its sequel, The Demon Party, adding it to your Steam wishlist would help us a lot.W...Read full article on Community Announcements (ETTU)AnnouncementsOfficial
We are currently working on a sequel to Debugging Hero!
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!Read full article on Community Announcements (ETTU)Patch NotesOfficial
Bug Fixes
Improved stability of camera-related codeRead full article on Community Announcements (ETTU)Patch NotesOfficial
Hotfix
Fixed an issue where the Demon Lord recruited as an ally in a previous run caused problems in subsequent endings.Read full article on Community Announcements (ETTU)Patch NotesOfficial
Hotfix
Fixed a memory leak occurring on the save and load screens.Read full article on Community Announcements (ETTU)
