Alchemist 404

Alchemist 404 is an experimental roguelike deckbuilder inspired by real-world chemistry. Isekai’d into a fantasy world, you must fight elemental dragons using a deck built around sword mastery and become the hero you were never supposed to be.
Become the Hero You Were Never Supposed to Be: You are just a gamer trapped in a brutal fantasy realm, but with a blade in your hand and the laws of science in your head, you might just stand a chance. Will you master the alchemical formulas required to slay the dragons, or will you burn trying?

Stylized Art
Hand-drawn artwork with detailed shapes, strong outlines, and prominent, irregular linework gives the game a distinct visual style with a xylography-inspired feel.
Tag-Based Card System
Your deck scales with you. Instead of relying on static damage numbers, cards are driven by a dynamic tag system, letting your hero’s stats determine how powerful they become.
Slot-Based Combat
Place cards into different slots to predict, counter and outplay your enemy’s actions.
Simultaneous Turns
Plan your moves, commit your cards, then reveal your enemy’s hidden actions and watch both sides resolve at once.
Alchemy & Reactions
Combine elements to trigger reactions inspired by real-world chemistry.