The Necroid Host

2026 · Campaign Setting (game world)

The Necroid Host

An OSR horror science-fiction campaign setting about immortal forces seeking to consume the universe and the Sentinels who oppose them. It introduces the Sentinel multiclass template, with Bulwark, Mender, and Support roles, alongside powers, equipment, artifacts, relics, weapons, armor, vehicles, and rules for creating them. Lair and lairship generation rules create randomized explorations of bases, hulks, and derelicts. The Alazi Star System provides a starting setting with new species, creatures, and factions, while a 48-page introductory adventure begins a campaign against the Necroid Host. The setting is designed to integrate with existing or new old-school science-fiction and fantasy campaigns.

Scenario / Adventure / ModuleSourcebook (rules/options to enhance play)Attribute/Stat Based (STR, CON, PER, etc)Level Based (Earn XP and level up)Dice (Primarily d20)

Game facts (players, playing time, age, credits) from BoardGameGeek.