Your finger is the blade.

Demon Slasher is a samurai action roguelite. You don't tap to attack — you draw the cut, and the shape of the stroke decides the strike. A horizontal line is a Yoko Giri. A diagonal is a Kesa Giri. A closed circle is an Ensō. Ten strokes, each with its real kenjutsu name, and your hand has to learn the difference.

SHISUI — STILL WATER
止水 opens a window. Chain every cut you can inside it, and they all land at once when it closes. The more varied the strokes, the bigger the multiplier. It is the best reason to learn the shapes instead of scribbling.

ONE LIFE PER CLIMB
Runs are short and death is permanent. Fall and you go back to the menu — but the gold and the experience come with you.

THE TOWER. Climb floor by floor. A boss every ten.
CRIMSON TOWER. Only bosses. Every floor, a titan. It opens at samurai level 8.

Between floors you pick cards that bend the run: raw damage, fire, ice and poison, lifesteal, execution below a health threshold, more time to keep chaining. Commons, rares and epics — the epics are forged from shards. Between runs, the Forge turns gold into upgrades that never go away.

WHAT IS WAITING UPSTAIRS
The FALLEN SHOGUN holds floor 40 and fights with two health bars. The FORGE GUARDIAN, the SPECTRAL QUEEN and the RUNIC COLOSSUS carry the seals that feed the special anvil. Below them, fourteen kinds of demon with variants by biome: a Burning Skeleton is not a Jade Spectre, and neither of them dies the same way.

DRESS THE SAMURAI
Ten outfits, from Blue Steel to the Shogun's Onyx. Nine blade trails. Two bodies: the Wandering Samurai and the Ō-Yoroi of the General, full plate with a horned kabuto and a menpō. Body and colour are separate, so any outfit goes over any armour.

PLAYING FAIR
The only ads are rewarded videos, and you ask for every single one: revive where you fell, double a run's loot, reroll the card you were offered, open the daily chest. None of them interrupt a fight and none of them appear on their own.

Cosmetics cost gems and change nothing in combat. Colours, trails, bodies. Nothing you buy swings a fight.

No accounts. We never ask for your name or your email. Your progress lives on your phone.

Gameplay data is optional, stays off until you turn it on, and you can turn it back off whenever you want.