Flan's BN

A deckbuilding RPG mixing mansion exploration with journeys through books

Geism · Published by Geism, Nyads Games · Released Feb 12, 2026

Reviews: Very Positive; 97% of 78
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 7 months ago; Mar 10, 2026
Minimum PC: GeForce GTX 570; 4 GB RAM · 1 GB disk; Full requirements

What is Flan's BN?

This single-player RPG follows Flan as she writes a story to understand herself. Across four chapters, you explore Scarlet Devil Mansion at night for books, friends, and special cards, then enter book worlds where you assemble a party and choose cards for turn-based battles.

For you if...

+you like building decks around different party members
+you enjoy stories that adapt classic literature

Not for you if...

−you prefer action combat over turn-based card battles

What players say

97% of 78 reviews are positive

Players praise the art and music but also report translation errors and bugs.

Screenshots and trailer

Flan's BN system requirements

Minimum: GeForce GTX 570, 4 GB RAM, 1 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10
Processor: Intel Core i5-2300 | AMD FX-4350
Graphics: Nvidia GeForce GTX 570
Memory: 4 GB RAM
Storage: 1 GB available space

Does Flan's BN have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Flan's BN run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
The native resolution is not the default one
All functionality is accessible with the default controller configuration
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Steam features: Family Sharing
Languages: Full audio: Simplified Chinese, Japanese. Text only: English, Korean.

Does Flan's BN use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam