In the heart of a forgotten diner, mysteries and desires intertwine in the dark corners. You inherit more than just grease-stained counters and rusty grills.

Balance the daily grind of cooking and customer service while breathing new life into the diner’s faded glory. As darkness descends, the diner transforms into a playground of slow-burning romance and tantalizing mysteries. Choose who to seduce and who to trust as you unravel the diner’s dark past and your own desires.

This visual novel blends life simulation with adult themes, weaving together management gameplay and steamy encounters. Delve into an erotic mystery that pushes boundaries and explores taboo pleasures. Your choices will determine whether the diner thrives or crumbles under the weight of its secrets and desires.

Step behind the counter and embrace a tale where love, mystery, and raw desire collide. The grill is hot, the coffee’s brewing, and the night holds promises you won’t want to resist.

Shadows stretch across the dimly lit corridors of a house heavy with secrets. Every breath feels charged with a dangerous mix of craving and restraint. Faint moans echo softly, mingling with the rustle of silk and skin.

A man steps back into the family estate, where past and present collide in a haze of temptation. The scent of desire lingers in the air, wrapping around the ample forms of those who await him. Groping hands and heated gazes tell stories of forbidden romance and raw, unfiltered lust.

This is not just a game; it’s an exploration of the complex, often twisted bonds that tie flesh to blood. Dive into a world where your desires clash with morality, and every secret threatens to unravel.

SULLEN PSYCHO (AKA: Project Psycho) features a dark fantasy setting the protagonist has no idea how he's ended up in, but instead of going out, he keeps diving in. What the hell, Allan? He's charming, care-free, and goes with the flow, long as he can! You control him throughout his weird adventures. He never (or rarely) questions the absurdity of his situation. Why should anyone else?
Sullen PSYCHO is not necessarily about a psycho, but a random fellow, Allan, who is where he's not supposed to be. But now that he IS here, he must navigate through the dark, mysterious, captivating castle he's found himself in. Therein he'll meet many entities, be it people or weirder creatures, friend or foe, alive or DEAD!
He'll meet Succubi and Talking Skeletons, Iron-clad Knights and Old Frauds and Tricksters who not unlike him, are hoping for a good time:
A Good Adventure.