Book of Fei (Mac) Review: An Idle RPG That Camps Out on Your Desktop
Out Now
Book of Fei is now available in its full version, bringing its quirky premise to Mac players: an idle RPG that sits directly on your desktop, keeping your party busy at the bottom of the screen while you do anything else.
What Is Book of Fei?
Book of Fei is a cute, casual idle RPG designed to be played passively. Instead of demanding a full-screen commitment, the game’s interface appears along the bottom of your macOS desktop—more like a companion widget than a traditional RPG client.
The core loop is familiar to idle fans: your heroes fight monsters, gain levels, collect loot, and improve over time. The twist is the presentation and intention: it’s explicitly built to coexist with your daily workflow, letting you check in, make upgrades, then let it run.
Adventure, Battles, and “Part-Time Jobs” (All on the Desktop)
Your party explores regions inside the book’s world, battling through enemies with the long-term goal of challenging the Demon King and uncovering the truth behind the realm. While the game progresses, you can also assign heroes to work part-time jobs to generate gold—fueling the next round of upgrades and gear purchases.
Between the passive progression, interaction systems let you engage with heroes to deepen bonds, adding a lighter social layer to the otherwise numbers-driven idle structure.
Progression Depth: 6 Characters, 24 Advanced Classes
Progression is where Book of Fei tries to provide more than a simple “watch numbers go up” loop. You’ll manage a roster built around:
- 6 characters as your core hero lineup
- 24 advanced classes unlocked through leveling and development
- Hundreds of equipment pieces to collect and optimize
- Card gear that modifies abilities and enables different builds
The card gear system is positioned as a build-crafting layer—collecting rarer cards with unique effects to reshape how a hero performs. Combined with class advancement, it encourages longer-term tinkering rather than a single linear upgrade path.
Badges and Props: Small Tweaks That Add Up
In addition to gear and card systems, the game includes badges and scene props with different effects. These function as supplementary modifiers—useful for players who enjoy optimizing efficiency, smoothing out weak points in a team composition, or pushing for better results in a specific region.
Made for Multitasking (and Office-Style Play)
Book of Fei is intentionally built for low-friction play. The feature set emphasizes staying out of your way:
- Screen resizing so it doesn’t dominate your workspace
- Interface scaling for different monitor sizes and preferences
- One-click hiding for instant cleanup
- Instant window concealment when you need the desktop fully clear
On a Mac, this translates well to a “check it between tasks” pattern: make a few upgrades, assign work, swap gear, then let the party grind while you get back to Safari, Xcode, Slack, or spreadsheets.
Who Is It For?
- Idle RPG fans who want long-term progression without constant input
- Build tinkerers who enjoy classes, gear rolls, and modifier stacking
- Multitaskers who want a game that can live beside daily Mac usage
- Players who like cute companions and lightweight, cozy vibes
Mac System Requirements
Minimum:
- OS: Mac OS X 10.9+
- Processor: 2.6 GHz Intel Core i3 or M1
- Memory: 8 GB RAM
- Storage: 648 MB available space
Bottom Line
Book of Fei is an idle RPG with a strong “desktop companion” identity: it’s meant to be present, pleasant, and productive in the background. If you like incremental progression, class unlocking, gear collection, and the satisfaction of checking in on a steadily improving party—this is a Mac-friendly, low-commitment way to keep an RPG running while your day keeps moving.