Legacy of the Horizon – Comprehensive System Summary

A Galaxy Built By One, Ready for Many

Designer: Monty Kuykendall
Development Period: 10 years
Total Written Content: 423,000+ words (projected 500,000–600,000)
Status: In development

I. What is Legacy of the Horizon?

Legacy of the Horizon (LoTH) is a full-scale, simulation-grade, hard science-fiction tabletop roleplaying game designed to reward mastery, immerse players in a living galaxy, and explore identity, consequence, and resilience through gameplay.

Created solo by Monty Kuykendall over a decade, it is one of the most expansive and structurally complete sci-fi TTRPGs ever made. LoTH is not rules-light. Every action drains energy, every choice echoes, and every encounter—political, personal, or military—can leave a scar.

With modular core mechanics, factional dynamics, psychological systems, 50+ locations, 8 fully written playable species, and 22,000+ words of gear, LoTH isn’t just a game world—it’s a galaxy that lives and remembers.

II. Design Philosophy

No filler. No bloat. No dead mechanics.
Modular from the ground up—everything is interconnected.
Player actions shape the galaxy: factions evolve, alliances fracture, death matters.
Characters evolve through memory, legacy, trauma, and ambition.
Emotional and psychological effects are mechanically supported.
Origins and backstory affect mechanical identity.

III. Core Mechanics & Structure

Dice Engine

D2–D19 scale tied to skill mastery
DR system ranges from DR 3 (Basic) to DR 15+ (Insurmountable)

Action Types

Actions consume stamina. Four tiers: Passive, Half, Whole, Complex.

Attributes

Primary: Momentum, Tenacity, Intelligence, Vigor
Passive: Grit, Stamina, Initiative, Life Support

Skill System

Primary: Weapons, Knowledge, Social, Discipline
30+ Secondary Skills
Skill ceilings governed by Primary cap

IV. Character Creation & Identity Mechanics

Every character is shaped by culture, class, and consequence.

8 Playable Species + 32 Origin branches
Up to 3 Professions with XP and stat cap impact
Certifications unlock faction or skill boosts
Ambition System affects XP and story arcs
Prestige System for long-form meta-narratives and resurrection options
Intensity Points = cinematic bonuses (max 3 stored)
Loadout Budget = 150,000 GC (adjusted per species/origin)

“Your character doesn’t just have a backstory—they have mechanical ancestry.”

V. Playable Species

An-Tuarï: Six-limbed tactical warriors bound by the Six Verities
Azzek: Suit-reliant engineers with 19.8M loadout paths
Cee-Var: Telepathic collectivists with unity mechanics
Humans: Clone-powered AI hybrids with rebirth rolls
Maësúú: Ancient Warp-Sling builders and lore-holders
Seklex: Merchant-artisans with immense wealth control
Varkått: Void-worshipping warmongers with singularity weapons
Velkaan: AI diplomats and Warp-Sling maintainers

VI. Combat, Morale & Survival

Stamina governs everything: movement, attacks, recovery
Each weapon type has its own critical effects
30+ mental states from berserk to paralyzed
Trauma accumulation system with dissociation consequences
Death = Grit hits 0 (unless cloned, AI-backed, or Prestige-revived)

VII. Galaxy Master Role

The GM is a strategist, not just a referee.

Designs dynamic factional changes and player-driven consequences
Supports modular storytelling across politics, horror, war, economics
Uses session zero protocols and narrative frameworks

VIII. Gear, Economy & Technology

22,000+ words of equipment data
Gear can be faction-locked, memory-tied, or Prestige-bound
Azzek loadouts = modular 6-slot design

IX. Starships

42,000+ words of starship systems
Faction styles influence construction philosophy
Supports mining, chases, boarding, and morale

X. Factions, Regions, and Systems

Regions include: The Singularity, Jutal, The Monument, Convergence, etc.
Major factions: Varkått Empire, Velkaan Collective, Vulsaan Pact, etc.
Warp-Sling Network and Void Drives shape movement and economy

XI. Narrative Mechanics

Prestige Legacy = evolve even after death
Ambition = narrative XP engine
Culture-based diplomacy, festivals, duels, and rituals

“The galaxy won’t wait. And it won’t forget.”

XII. Final Word

Legacy of the Horizon isn’t just a TTRPG. It’s a modular galaxy of consequence, built for master tacticians, worldbuilders, and narrative architects. It rewards precision. It remembers choices. And it’s only just beginning.