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About Book of Fei

Book of Fei is an idle RPG that runs along the bottom of your computer desktop. You send heroes through regions in a book world to fight monsters, level up, unlock advanced classes and challenge the Demon King while uncovering the truth of the realm. Heroes can also work part-time jobs to earn gold, and you can interact with them to deepen your bonds.

Heroes and progression

The game has six heroes, each of whom can Awaken into an ultimate class with new combat mechanics and skills. There are 24 advanced classes, and each Awakened class plays differently. Heroes can reach level 2000, and an endgame Paragon Talents system becomes available once all six have Awakened; it uses a hexagonal talent board and a shared pool of talent points.

You can combine Awakened classes, cards, defense affixes, talents and artifacts to shape different builds. For example, an Awakened Archer can use talents and the Sagittarius artifact for multi-shot attacks; an Awakened Priest can combine passives and Paragon talents to clear the screen; an Awakened Guardian can stack reflect and shields, growing stronger as enemies hit them; an Awakened Warrior can trade health for greater damage while using lifesteal; and an Awakened Dancer can build evasion to 100%, group enemies and detonate them.

Battles and challenges

Battle tiles let heroes auto-farm, while work tiles provide idle gold. Endless Defense adds wave-based, tower-defense-style combat, with a dedicated defense talent tree for each hero and an affix system for crafting builds. The Auto Challenge system can progress through stages hands-free, with options for main-story-only runs, automatic switching to work for gold and auto-harvesting.

The Forge Temple offers more than 20 difficulty tiers of challenge dungeons. Its enemies have Demonic Shields that must be shattered. Choose heroes for training, collect materials and craft Mythical Equipment with random stat affixes.

Equipment and collections

Collect hundreds of equipment pieces and cards to shape your team, along with badges and scene props that have various effects. Assign heroes to work in different areas to earn gold, then spend it on equipment, combat mechanisms and enhancement badges. Equipment can be enhanced, with its quality determining its enhancement cap; badges provide additional stat bonuses and can be enhanced up to +100 levels. Soul Badges form a separate advanced badge progression with visual glow effects.

The Artifact System includes 12 Zodiac constellation artifacts, each with unique combat effects. Artifacts drop naturally over time and are displayed in the Artifact Cabinet.

Desktop features

The game includes a decoration system and a desktop pet. Its window can be resized and scaled, made transparent or hidden with one click, including concealment in the system tray.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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