Book of Yog Idle RPG
Idle action RPG with anime heroes, team building, and loot
元气工作室 · Released Jul 29, 2022
ActionAdventureCasualIndieMassively MultiplayerRPGStrategyFree To Play
- Reviews
- Mixed
- 65% of 8,988
- Recent reviews
- Mixed
- 67% of 114 in 30 days
- Playing now
- 813
- right now
- Steam Deck
- Playable
- Last update
- 3 days ago
- Sep 20, 2026
Free demo available, 0 playing it now: get the demo.
What is Book of Yog Idle RPG?
An idle action RPG where you recruit anime heroes, assemble four-character squads, and manage equipment, skills, talents, and randomly generated loot while battles and offline progression supply resources. As commander of the Black Guard, you defend the Arkrance Great Wall from monsters emerging from the Black Tide.
For you if...
- +you enjoy idle progression and detailed character management
- +you like building four-hero teams around class synergies
- +you want anime character art and suggestive outfits
Not for you if...
- −you dislike gacha systems and frequent purchase prompts
- −you want fast progression without time-gated walls
- −you prefer hands-on combat over automated grinding
What players say
65% of 8,988 reviews are positive · 67% of 114 in the last 30 days
Players most often praise the character art, outfit customization, and deeper-than-expected team and equipment building. Common complaints cite confusing English translations and menus, constant purchase prompts, steep progression walls, and bugs that players say remain unfixed.
Screenshots and trailer
Book of Yog Idle RPG system requirements
As published by the developer.
Minimum
- OS
- Windows 7, Windows 8, Windows 10
- Processor
- Intel Core-i3 or faster processor
- Graphics
- any type
- Memory
- 4 GB RAM
- Storage
- 400 MB available space
- DirectX
- Version 9.0
Recommended
- OS
- Windows 7, Windows 8, Windows 10
- Processor
- Intel Core-i5 or faster processor
- Graphics
- any type
- Memory
- 8 GB RAM
- Storage
- 1 GB available space
- DirectX
- Version 9.0
PC version details
DRM, required accounts, controller support and Steam features.
- DRM
- None declared on Steam
- Controller
- Keyboard and mouse
- Platforms
- Windows
- Steam features
- Family Sharing, In-app purchases
Steam Deck: Playable
- Sometimes shows mouse, keyboard or non-Deck controller icons
- Some in-game text is small and may be hard to read
- All functionality is accessible with the default controller configuration
- Default graphics settings perform well on Steam Deck
- Singleplayer gameplay requires active internet connection
Tags
- Sexual Content
- Hentai
- Anime
- Hack and Slash
- Loot
- Idler
- Strategy
- Incremental
- PvP
- Visual Novel
- Free to Play
- Indie
- Cute
- Horror
- Nudity
- Deckbuilding
Recent updates
- Sep 20, 2026 · Patch Notes of September 20
- Sep 9, 2026 · Patch Notes of September 9
- Aug 28, 2026 · Patch Notes of August 28
- Aug 13, 2026 · Patch Notes of August 13
- Jul 28, 2026 · Patch Notes of July 28
5 DLC available.
