Prisma System

The core

You roll 1d6. 4 or higher is a success. With Advantage you roll 2d6 and keep the higher; with Disadvantage, the lower. Characters start with 3♥, 6 inventory slots, and a Trade that grants Advantage when it applies.

With the core alone you can already play a full session.

Truly modular

Turn on only what you need:

• Traits & progression — Command, Ingenuity, and The Ancient; upgrades with Marks
• Gear tags — Brutal, Agile, Resistant, Residual, Thirsty…
• Quality & wear — from Faulty to Masterwork
• Contested rolls — grapples, chases, arguments
• The Ancient & Residual — power with a possible price
• Faction Pressure — attention that rises and falls
• Loot & resources — unified tables
• Solo — challenges, threat clock, place + threat
• Open world — contracts, rarity (5 levels), hunting and crafting

Everything is compatible. Nothing is mandatory.

What it’s for

• Quick one-shot sessions
• Campaigns with progression
• Solo play with zero prep
• Hunting, exploration, horror, or the numinous

You supply the setting: only names and flavor change. The mechanics stay the same.

Includes

• Complete rules (core + modules)
• Fast dungeon procedure
• Procedural world generation (hex by hex)
• Ready to print or use on screen

I welcome suggestions and changes to help improve it.