Log Horizon TRPG (ログ・ホライズンTRPG)

An unofficial system for playing Log Horizon TRPG (ログ・ホライズンTRPG) on Foundry VTT. Originally created by Kyane (Tenyryas); maintained since 2026 by DeadlyPoisonK with the original author's permission.

Features

• Character and monster sheets with automatic stats, checks and modifiers.
• Race, Class and Subclass browser that offers the starting skills.
• 11 compendiums: races & classes, skills (basic, common & subclass, racial, archetype, class, mount), GM EX Powers, items, bestiary and a Rules journal.
• Chat cards for Hit vs. Evasion/Resistance, damage with defenses, Cancel, Barrier, Hate and undo.
• All Log Horizon statuses as token statuses, synced with the sheet, with Ratings and tags.
• Active Effects with a target picker, skills that apply effects when used, sustained-skill limits, and Log Horizon durations (end of process, round or scene).
• Combat tracker with Log Horizon round progression (Setup, Main, Cleanup, Standby, Post-Action).
• Built-in loot piles, chests and merchants.

Content. Compendium text is a manual Japanese→English translation of the official, free Log Horizon TRPG database (lhrpg.com/lhz). This system is not affiliated with Mamare Touno or Kadokawa; owning the rulebooks is recommended.

Languages. Interface in English, Spanish, French, Italian, Japanese and Korean (fr/it/ja/ko not yet reviewed by native speakers: corrections welcome). Compendiums in English.

Compatibility. Foundry VTT v13. Back up your world before opening it in a newer version.

Issues and contributions: https://github.com/DeadlyPoisonK/LHTTRPG