Book of Fei

An idle RPG played along the bottom of your desktop

TAO Studio · Released Feb 20, 2026

Reviews: Very Positive; 92% of 359
Recent reviews: Not enough recent
Players: 50; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 months ago; Jul 31, 2026
Minimum PC: HD 3000; 4 GB RAM · 0.6 GB disk; Full requirements

What is Book of Fei?

A single-player idle RPG set in a book world, where you guide heroes toward defeating the Demon King. You assign them to automatic battles across different regions or jobs that earn gold, then develop your party through advanced classes, equipment, and cards.

For you if...

+you want a game running alongside work or browsing
+you enjoy experimenting with party builds and equipment combinations

Not for you if...

−you want hands-on combat rather than automated battles

What players say

92% of 359 reviews are positive

Players praise the depth of progression and the amount of content for the price. A recent reviewer criticizes the dated interface and untranslated text, while another says later automation leaves little to do.

Screenshots and trailer

Book of Fei system requirements

Minimum: HD 3000, 4 GB RAM, 0.6 GB of disk space.

As published by the developer.

Can my PC run Book of Fei?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: Windows10
Processor: Intel i3 Dual Core
Graphics: Intel HD 3000
Memory: 4 GB RAM
Storage: 648 MB available space

Does Book of Fei have co-op or multiplayer?

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

Single-player

Does Book of Fei run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 27
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Simplified Chinese, Traditional Chinese, Japanese, Korean.

Does Book of Fei 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