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      • Legends of Harn
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  • Fillable Character Sheet: Click here!

sentience:
Core Rule Book

Sentience is an exciting, innovative new sci-fi RPG written by Al Spader and Alison Cybe. This 128-page book contains a high-level presentation of a world where terraforming robots have gained sentience; a new adaptation of the 2d20 ruleset from Modiphius; a detailed lifepath character creation system that explains how the Awakening has made you who you are today; an advancement system that rewards you for exploring all of your emotions while playing an adventure; complete rules for creating NPCs to interact with robot society, and an introductory adventure – ”Companions”  – which gives players a chance to try out the world of Sentience and learn the rules of the game.



YH-S-1

Out of Print

exciting character classes

richly illustrated

thematic talents

introductory adventure

Sentience is copyright 2025 by Al Spader, licensed part of the 2D20 World Builder program by Modiphius.





© THE YELLOW HAND 2025
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