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Book of Fei

Book of Fei

by TAO Studio

★ 95%
Price $2.99
Avg Players 205
Reviews 289
Released Feb 20, 2026
2DCasualClickerCombat
Offline progress
View on Steam ↗

Media

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Book of Fei places a team of collectible heroes on your desktop to automatically fight monsters and earn currency while you work. The game layers progression systems including character upgrades, prestige mechanics, and unlockable content that consistently extends the endgame, creating a low-attention experience that rewards both active play and extended idle periods. It appeals to players who enjoy gradual collection gameplay with frequent milestone rewards and minimal time investment required.

About this game

What players are saying

▲ Recommended 4 hrs
The initial welcome to the game is charming, as it begins with a book opening across your desktop. It quickly becomes clear that this is no ordinary book. Inside lies a living world that has unfortunately been overrun by monsters. You are guided by the book’s guardian, Fei, who tasks you with reclaiming this world with the help of heroes. Your journey begins with Arya, the very first hero, who starts out as a complete novice.

The game is divided into two main parts. In the first part, Arya generates money in an idle fashion. However, this process only lasts for a little over two minutes before you need to manually press the claim button. If you fail to do so, the income stops accumulating. At the same time, there is also a more active way to earn money. By clicking and shaking a hero, you can generate significantly more gold that is instantly added to your stash.

The second, and main component of the game revolves around battles. The world within the book is divided into a grid of smaller and larger squares. Your objective is to travel across these spaces, defeat several waves of enemies, and ultimately face a boss at the end of each encounter. Combat itself is automatic. If your heroes win, they advance to the next wave. If they lose, the battle resets back to the first wave.

Unlocking new areas on the map requires spending money. Each spot only needs to be unlocked once, but the cost steadily increases the further you move away from the starting point in the center toward the outer edges of the map. The ultimate destination lies on the far right side, serving as the final goal of your adventure.

Defeat is not necessarily a setback because it is also part of the progression. Heroes gain experience from every enemy they defeat, gradually increasing their health, attack power, and speed. Each hero also has two special abilities that activate automatically during combat.

Since no hero can fight effectively without equipment, you will spend your hard earned money on chests that contain random gear. These chests can provide weapons, armor, or accessories. Heroes belong to different archetypes such as warriors or archers, and each archetype has its own type of chest.

Every hero has four tiers of equipment for each gear category. While the first tier is available from the start, the remaining tiers unlock as you progress through the world. Fortunately, the game avoids drowning the player in endless piles of useless items. If you obtain equipment with a higher rarity tier, it is immediately equipped. The highest rarity is the rainbow tier. If you receive a lower quality item, it automatically converts into experience books that can be used to boost a hero’s level. Once you manage to acquire the best possible equipment, chests will reward only experience books instead of redundant gear.

As you reclaim areas of the map, new heroes become available for purchase. Up to three heroes can form a party and participate in battles. However, each hero has a level cap. When a hero reaches the maximum level and fulfills certain requirements, you can promote them to a stronger class. This promotion increases all their stats and grants two additional abilities, although the hero returns to level one. Beyond this, there are even third and fourth class promotions, though reaching them may take some time.

Another piece of customization comes in the form of monster cards. These rare items occasionally drop from defeated enemies. Each card grants a unique perk, such as generating a protective shield every ten seconds, restoring a small percentage of health over time, increasing attack power, and many other perks. A hero can equip only one card at a time, and cards must be collected manually by clicking on them when they appear after a battle. Just like with gear, cards come in rarity tiers, and they are replaced automatically when a better found is found.

The core gameplay loop is simple but effective. You earn money to unlock new map locations, purchase chests to obtain better equipment, and defeat all enemies in an area until it reaches one hundred percent completion. Once a location is fully conquered, you can move to adjacent areas, gradually expanding your reach across the map.

Not every location leads to combat. Some spots unlock new working areas that increase the idle income limit, allowing the game to run unattended for longer periods. Others trigger special events that unlock badges in the shop. These badges provide helpful bonuses, such as a small lifesteal chance or additional experience for heroes who are not currently participating in battles.

Overall, the game strikes a pleasant balance between idle mechanics and active interaction. Progressing through the world and completing all achievements may take several hours, yet the experience rarely feels like a chore or something that constantly demands your attention every few minutes. Instead, it offers a relaxed and rewarding pace that fits perfectly within the idle genre.
2 found helpful Steam ↗
▲ Recommended 109 hrs
Fantastic little Idle game!! Scratches every itch, and just keeps giving! Four different times I've thought "Ok, here the plateau is, that was fun", and then BAM! There's a new build tree or weapon system or map mode(using broad terms as not to spoil anything). I plan on this being a part of my screen for a long while. Well done dev/devs!! Thank you
1 found helpful Steam ↗
▲ Recommended 68 hrs
Quite a fun little idle game, devs are super active too.
0 found helpful Steam ↗

Reviews are by Steam users, hosted on Steam.

Latest updates

A Note from Arya | Smoother Card Pickups & 777 Icon Fix (v3.03.001)

20 hrs ago
Hi, Brave Hero! Arya here. We've polished card pickups and tweaked the settings UI for a smoother adventure.Attempted Fix: Lucky 777 Icon Display: Fixed an issue where the result icon could display incorrectly when Lucky 777 awarded no prize in certain cases.Improvement: Card Pickup Controls & Hints: Improved card drop pickup controls and hint logic, making it easier to locate and collect cards left on the map.Fix: Unreachable Card Drops: Fixed cases where dropped cards could not be found or picked up.Improvement: Settings UI Scaling Experience: Improved the experience of adjusting the game UI scale in the settings screen.Go grab those stray cards, Brave Hero!Contact: yunthelia@zohomail.cn / QQ: 37530735 / QQ Group: 1047804252 / Discord:https://discord.gg/hSdJ7gDjDQ

A Note from Arya | Jackpot Fixed & Harvests Smoother (v3.02.011)

2 days ago
Hi, Brave Hero! Arya here. We fixed a little 777 hiccup and made your work plots harvest even smoother!Fix: 777 Jackpot Compensation: Fixed a bug where the 777 jackpot could not be obtained in some cases. If you were affected, just reopen the 777 screen and your reward will be sent automatically!New Feature: Work Plot Auto-Harvest Hint: Added a hint for the work plot auto-harvest mode so you can see the current state at a glance.Improvement: Work Plot Auto-Harvest Logic: Improved the work plot auto-harvest logic — it now collects on a timer instead of waiting for the temporary warehouse to fill up.If your 777 jackpot is still missing, just reopen the screen to claim it. Happy idling, Brave Hero!Contact: yunthelia@zohomail.cn / QQ: 37530735 / QQ Group: 1047804252 / Discord:https://discord.gg/hSdJ7gDjDQ

A Note from Arya | Smoother Temple, Steady Screen (v3.02.009)

5 days ago
Hi, Brave Hero! Arya here. This update makes temple challenges smoother and keeps your game screen right where it should be!Improvement: Temple Auto-Challenge Option Experience: Further polished the "Auto-Challenge Next Difficulty" option in the Temple — smoother difficulty switching and more intuitive controls.Fix: Screen Height Anomaly on Startup: Fixed an issue where the game screen height could be misaligned when entering the game in certain situations. Rock-steady display for a better view!Smoother temples and a rock-steady screen — the adventure keeps getting better, Brave Hero, and it's all thanks to having you along for the journey!Contact: yunthelia@zohomail.cn / QQ: 37530735 / QQ Group: 1047804252 / Discord:https://discord.gg/hSdJ7gDjDQ

Posts come from Steam's official announcements feed.

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