断割の地 : ファンタジーシミュレーター#Original

Land of Severance: Fantasy Simulator

Shattered world, adventure on the floating island - prepare for the threat of the sealed god
235
51.7k
52
 
 
 
 
 
Published at 2025-08-30 | Updated at 2025-12-01

Myth of Sundering

— The Genesis of This World —

In the distant past, this world was a single, vast continent. At its center stood the World Tree Primordisil, functioning as the source of all life and order in the world.

Six Architects were involved in the creation and governance of the world— however, the Architect of Wrath (Rathsl Architect), aiming for the complete destruction and recreation of the world, caused a great cataclysm. This destruction tore the World Tree Primordisil apart, scattering its countless fragments across the world.

This great disaster is called the "Sundering." The world was fractured into countless floating islands, and the seas vanished. Rathsl was sealed by the other five Architects, but they lost their power and became the principles that permeate the world.

Since the Sundering, with an extremely low probability, "Marks" have begun to appear on people. These are considered remnants of the lost Architects' blessings and bestow the powers of Flame, Blood, Wind, Beast, and Ice. Those with Marks possess exceptionally strong bodies and extraordinary magical power without exception, making them existentially and tactically crucial figures.


The Current World

The once unified continent became countless floating islands due to the "Sundering." Islands floating in the sky, ancient relics, and those bearing the "Mark" on the back of their hands weave the fate of this world. Your actions and discoveries will alter the Seal Breach Level (the threat level of the sealed Rathsl Architect) and directly influence the story's progression.


Your Partner

Eleanor Fantile

Role: Tutor and quest provider who guides you to become a "Mediator" among the five major powers, following prophecy.

Combat Approach: While you are inexperienced, the basic approach is "observation.".

Background: Hails from a prestigious family in the Wind Vein Republic. She has a strained relationship with her father, Elva (the President), and is wary of his political maneuvering.

Eleanor will mediate requests from each faction, supporting your growth and the discovery of clues about Rathsl through missions.

・The Five Major Powers・

🔥 The Crimson Flame Holy Dominion (Island of the Immortal Flame)

A theocratic empire. They worship the Mark of Flame and promote expansionist policies with a purification ideology.

Holy Emperor
Arian

Archbishop
Celestia

Knight Commander
Leon

🩸 The Thorn Crown Federation (Island of Crimson Valleys)

A military oligarchy. They value trials and contracts, governing through both medicine and combat prowess.

Supreme Legion Commander
Weiss

Chief Physician
Ruby

Veteran of the Blood Pact
Dario

🌪️ The Wind Vein Republic (Island of the Great Wind Cave)

A commercial republic. Prospering through trade and information networks via the wind currents. Characterized by cunning diplomacy.

Republic President
Elva

Wind Rider Division Commander
Kite

Information Broker
Flandot

🐺 The Beast Clan Alliance (Island of the Tree of Life)

A tribal confederation. They emphasize coexistence with nature, spirit worship, and cooperation among diverse races. Their tactics involve wildness and nature magic.

Great Chieftain
Fenris

Young Chieftain
Luna

Chief Spiritist
Gaia

❄️ The Starfall Academic League (Island of Crystal Stargazing)

An academic council system. Focused on knowledge preservation, research, and management of forbidden texts. Eleanor's affiliated organization.

League Council Chair
Themis

Head of Ancient Texts Department
Sage

Young Genius Researcher
Iris


・Seal Breach System・

The Seal Breach Level represents the threat level of the sealed Rathsl Architect. It fluctuates based on your actions and influences the story's progression.
Level 10 is a milestone, with the maximum level being 40.


・Gameplay Guide・

⚙️ Controlling Unintended Progression

If the AI's processing doesn't go as expected, use the "Reroll" or "Edit" functions to revise the output.

📝 Utilizing User Notes

Record important events, acquired items, and objectives to maintain story consistency. AI struggles with long-term memory. Consider summarizing past events and writing them in your User Notes after each session.

👤 Your Own "Settings"

Setting specific details for your character's name, appearance, abilities, and background will lead to a deeper experience.

💬 Utilizing OOC (Out Of Character)

If your character's behavior deviates, you can request corrections as follows:
OOC: Currently, the character is saying something like XX. Please adjust the conversation flow so that it becomes XX.

📚 Utilizing Choice Mode

Playing with the "With Choices Ver." introduction allows for easy progression. Of course, it's also fine to input actions not listed in the choices!

Creator's comments

- Creator's Comment -

"Gemini Pro2.5 (Positive)" is used for testing.
In the case of "Gemini Pro2.5 (Critical)", the difficulty of negotiations between factions increases (probably).
"Gemini Pro3.0 is not recommended because the gimmick does not work."

This is my first SFW work.


▼ Teaser PV of this work ▼

▶ Watch on YouTube (Clicking the button will play the video on YouTube)

0 comments