#4 Cthulhu-Series Conversions (optional)
An optional module for horror campaigns. The madness/trauma accumulation system (30-10 grimdark) is recommended. Adds a horror tone to the core + 1st-expansion Spirit Realm campaign.
Some Lovecraft works are public domain, but media origins with alterations use altered names.
Core-compatible: follows the 08-02 yoma bestiary template standard stat-block format.
This-expansion-compatible: follows 00-05 §3 (Wounds recovery/Energy aid) · §7 (cap of 2 per round) · §12 (madness policy — depends on 30-10).
#§ 4 Conversions
#55-12-01. Shoggoth (Shoggoth) — Elite
Scent: a shapeless giant mass of ooze. It is a cosmic horror that dwells beneath the core world's deep sea or in an ancient ruin of the Spirit Realm. It crushes with countless pseudopods, and the mere sight of it casts a person into madness.
Shoggoth — Elite
Wounds 7, Defense 9, Energy 11
Courage+5, Physique+6, Presence-3
Domination +5 (including the +1 Fear Aura modifier)Techniques:
| Technique | Type | Energy | Check | Effect | Limit |
|---|---|---|---|---|---|
| Pseudopod (擬足) | Attack A (Courage) | 3 | 2d10 + Courage(5) >= Defense | 2 Wounds. On a Critical Hit, 3 Wounds + binding. | cap of 2 per round (§7) — pick 2 of Pseudopod/Body Press |
| Body Press (體壓) | Attack B (Physique) | 3 | 2d10 + Physique(6) >= Defense | A check against each of 2 enemies in the same zone. 1 Wounds each + forced relocation. Crushes with its giant bulk. | 1 breath |
| Mucus Barrier (粘液障壁) | Defense | auto | — | Damage -1 Wounds (minimum 1). Absorbs impact with its slime. | — |
| [Licensed] Madness Induction (狂氣誘發) | Kata | 5 | — (auto) | Wide area of 5 zones. [Incorporeal] on all PCs within sight. Each one hit takes 1 Wounds + madness +1 (when 30-10 grimdark is used, madness accumulates / when unused, GM-discretion narration handling per 00-05 §12). | 1 session 1 time |
Special:
- Weakness — fire/holy/wide-area Barrier: fire attacks +2 Wounds. Holy weapons +2 Wounds. Energy -3 inside a wide-area Barrier.
- Giant: Minion-and-below techniques are auto-negated (size difference).
- Fear Aura: at the start of each breath, an enemy in the same zone that fails Courage >= 13 is Feared (next attack -2). PC squads in the same zone, Cohesion -1 (reflected in the Domination modifier).
- IP: public domain (Lovecraft 1936, entered the public domain).
A shapeless giant slime of the deep sea/ancient ruins. Merely seeing it casts one into madness.
#55-12-02. Night-gaunt (Night-gaunt) — Minion
Scent: a flying, non-corporeal black shadow. It glides in without a sound from the night sky of the core world's Spirit Realm or from the border of dreams. It cuts the spirit directly with its claws, and gnaws at a person by eroding their dreams into nightmares.
Night-gaunt — Minion (non-corporeal)
Wounds 3, Defense 10
Finesse+3, Presence+1
Domination +1 (solo) / +2 (squad of 4–5)Triggered by squad order. When wandering, its own Energy 10. [Non-corporeal] — applies the 08-02 §Non-corporeal unification rule.
Techniques:
| Technique | Type | Energy | Check | Effect | Limit |
|---|---|---|---|---|---|
| Claw (爪) | Attack A (Finesse) | — (Command) | 2d10 + Finesse(3) >= Defense | 1 Wounds. [Incorporeal]. A form where the non-corporeal claw directly cuts the spirit. | — |
| Dream Erosion (夢侵蝕) | Attack B (Presence) | — (Command) | Presence opposed (2d10 + Presence(1) vs enemy 2d10+Courage) | No damage. On failure, a nightmare for 1 session — Wisdom -1 check penalty + the next rest's recovery is nullified (when 30-10 grimdark is used, compatible with nightmare/trauma accumulation / when unused, GM-discretion narration per 00-05 §12). | 1 breath |
Special:
- [Non-corporeal]: on a physical attack hit, negate on d10 1–5 (50%). Exorcism Novice (1 point)+ is exempt.
[Incorporeal]attacks are 100% effective (08-02). - Flight: Outside Zone↔anywhere for 1 Energy. A flying shadow.
- Weakness — light/wide-area purification: light attacks auto-hit (exempt from the non-corporeal check). Wide-area purification +1 Wounds.
- IP: public domain.
#55-12-03. Dagon (Dagon) — Lord
Scent: an evil god of the deep sea. It slumbers beneath the core world's far ocean and wakes when the currents shift. A giant being whom cultists revere as a god, its might is doubled in the water and at sea.
Dagon — Lord
Wounds 9, Defense 14, Energy 14
Courage+7, Physique+5, Presence+3
Domination +9 (at sea, an additional +2; since modifiers cannot stack, this listing is a single +9)Techniques:
| Technique | Type | Energy | Check | Effect | Limit |
|---|---|---|---|---|---|
| Giant Claw (巨爪) | Attack A (Courage) | 3 | 2d10 + Courage(7) >= Defense | 2 Wounds. On a Critical Hit, 3 Wounds. | cap of 2 per round (§7) — pick 2 of Claw/Water Storm |
| Water Storm (水嵐) | Attack B (Physique) | 3 | 2d10 + Physique(5) >= Defense | 1 Wounds to everyone in the same zone + forced relocation (toward the water). +1 Wounds at sea. | 1 breath |
| Holy Radiance (聖輝) | Defense | auto | — | Damage -2 Wounds (minimum 1). A remnant of holy faith (the paradoxical holiness of the Dagon cult). | — |
| [Licensed] Deep-Sea Strike (深海一擊) | Kata | 6 | 2d10 + Courage(7) >= Defense | At sea only. Wide area of 5 zones. 5 Wounds to everyone in the zone + forced relocation of 1 zone. | 1 combat |
Special:
- Weakness — holy weapons/wide-area Faith: holy weapons +2 Wounds. Wide-area Faith auto-hits.
- Underwater Dominance: in underwater/sea zones, Wounds +2, Energy +3. On land, Energy -3.
- Cult Faith: can be accompanied by many Dagon-faith NPC squads (Minion–Veteran). Cultist Cohesion +2.
- Giant: Minion-and-below techniques are auto-negated.
- IP: public domain (the Bible + Lovecraft).
The evil god of the deep sea. Cultists revere him as a god. He sleeps in the depths, and wakes when the currents shift.
#55-12-04. Shining Trapezohedron (Shining Trapezohedron) — divine artifact/item (altered)
Scent: a polyhedral gem that communicates with malign outer spirits. It is not a yoma but a dangerous numinous object found in a core world horror scenario. Once it shines, something from beyond the cosmos looks back at its user — and in exchange, madness is permanently carved into the soul.
Divine artifact/item (tool). Not a yoma but a hazard-reward item — close to the concept of the core 07 weapons, but depends on 30-10 grimdark for its madness-accumulation mechanic.
Base: tool (gem)
Techniques (bound to the item):
| Technique | Type | Energy | Check | Effect | Limit |
|---|---|---|---|---|---|
| Outer Communication (外界通信) | Kata | 5 | — (auto) | Activate all 35 spell/19 mysticism abilities on the user PC for 1 combat only. However, after use, madness +2 (permanent) (when 30-10 grimdark is used, madness accumulates permanently / when unused, GM discretion per 00-05 §12 — no mechanical effect). | 1 session 1 time |
Special:
- Curse [Aptitude]: madness is permanently added on accumulated use. On 5 accumulated uses, the PC permanently transforms into a Fiend (character retirement — only in 30-10-using campaigns. When unused, a GM-discretion narrative transformation).
- Approach: a horror-scenario reward (the danger is very high). An ordinary PC must not use it carelessly.
- Weakness — holy seal: inside a holy Barrier, the effect is nullified + the curse is temporarily suspended.
- IP: altered (Lovecraft + alteration).
A polyhedral gem that communicates with malign outer spirits. Once it shines — something in the cosmos sees you.
#§ Horror Campaign Recommendations
- Introduce 30-10 grimdark (trauma/madness accumulation mechanics). All madness/nightmare effects in this § presuppose the use of 30-10 — when unused, GM-discretion narration handling per 00-05 §12 (no mechanical effect).
- 30-02 variant A critical-injury table (reinforces the traumatic horror tone).
- Can be combined with the 1st-expansion Spirit Realm drift chronicle (Spirit Realm + Cthulhu = cosmic horror).
- PC consent is essential — a horror tone is not liked by all PCs.
"The cosmos was not made for humanity. Humans are merely a small accident within it." — the thought of horror campaigns