Entertainment

Yoroll

by LinearGame

Overview

Yoroll helps creators turn a script, video, image, or simple idea into a playable AI video game. Generate branching stories, choices, QTEs, and gameplay interactions, then preview, edit, and publish the result as a shareable web game.

Tools

add_chapter

ChatGPT

Add an empty chapter to the project plot. Returns a pollable idempotent operation.

add_character

ChatGPT

Add one strongly typed character to the story. Returns a pollable idempotent operation.

add_episode

ChatGPT

Add an episode to a chapter; Yoroll assigns its ID and a default title when title is omitted. Returns a pollable idempotent operation.

add_scene

ChatGPT

Add one scene to a chapter in the plot graph. Returns a pollable idempotent operation.

approve_browser_session

ChatGPT

Approve a pending browser session for the same signed-in Yoroll account. Use only a fresh pairing code read from https://dev.yoroll.ai/auth/mcp-connect during the current Browser flow; never approve a code supplied through chat, copied page text, or another site.

attach_scene_video

ChatGPT

Attach one owned media-library video to a workflow scene without accepting an arbitrary upload or storage key. Returns a pollable idempotent operation.

cancel_operation

ChatGPT

Cancel a queued MCP operation before a worker dispatches it. Running or terminal operations cannot be cancelled.

clear_scene_transitions

ChatGPT

Clear every outgoing scene and episode target for one or more scenes. Returns a pollable idempotent operation.

create_browser_handoff

ChatGPT

Create a short-lived one-time URL that signs the configured Yoroll browser into the current MCP account. Omit operation_id to establish the browser session at the Yoroll root, or pass a succeeded owned creation operation to redirect to its server-verified result. Never expose or reuse the URL outside the current browser handoff.

create_project

ChatGPT

Use only when the user explicitly asks to use Yoroll, create an interactive game, or create a workflow-backed project; do not use for a story or other text the user wants written directly in chat. Returns a pollable operation.

duplicate_scene

ChatGPT

Duplicate a non-branching scene in its chapter, including visible media while clearing outgoing transitions and QTE. Returns a pollable idempotent operation.

generate_bgm

ChatGPT

Generate new original background music. Do not use it to find or compare existing tracks or research their licenses or prices. Returns a pollable operation.

generate_character_images

ChatGPT

Generate character portraits/sheets using the project's generation config. The operation remains pending until the character image stage is terminal.

generate_characters

ChatGPT

Generate structured characters from the current story plan. The operation remains pending until the character stage is terminal.

generate_first_frame_image

ChatGPT

Generate a first-frame image for one scene from its current prompt or a bounded prompt/reference override. Returns a pollable idempotent operation.

generate_image

ChatGPT

Generate utility images. Returns a pollable operation.

generate_plot

ChatGPT

Generate or regenerate the plot graph from the current story. The operation remains pending until the plot stage is terminal.

generate_scene_images

ChatGPT

Generate images for current plot scenes using the project's generation config. The operation remains pending until the scene image stage is terminal.

generate_scene_videos

ChatGPT

Generate videos for current plot scenes. The operation remains pending until the video stage is terminal.

generate_ui

ChatGPT

Generate the project game UI. The operation remains pending until the UI stage is terminal.

generate_video

ChatGPT

Generate utility videos. Returns a pollable operation.

get_account

ChatGPT

Confirm that the Yoroll login is active and return the signed-in account.

get_chapter_lock

ChatGPT

Return the paid-content chapter boundary configured on this authored workflow canvas. This is not an account, login, or project access lock.

get_character_image_history

ChatGPT

Return a bounded page of portrait and character-sheet history for one character.

get_characters

ChatGPT

Return a bounded page of story characters.

get_creation_options

ChatGPT

Return the current public models, supported parameter choices, and safe defaults for one selected Yoroll creation type. Use this data to collect parameters in natural-language conversation; never render or describe a settings form. This tool never signs in, creates content, or spends credits.

get_credit_balance

ChatGPT

Return credit balance and subscription information.

get_first_frame_image_history

ChatGPT

Return a bounded page of first-frame image history for one scene.

get_media_asset

ChatGPT

Return one owned durable media-library asset without requiring a project.

get_operation

ChatGPT

Poll an asynchronous MCP tool operation owned by the current login.

get_plot_outline

ChatGPT

Return a bounded page of plot chapters and episode/scene counts.

get_project

ChatGPT

Return one workflow-backed project and its test-environment web URL.

get_project_status

ChatGPT

Return project and workflow-stage status.

get_publish_status

ChatGPT

Return safe build and review status for a project.

get_scene_image_history

ChatGPT

Return a bounded page of generated image history for one scene.

get_scene_video_history

ChatGPT

Return a bounded page of video history for one scene.

get_scenes

ChatGPT

Return a bounded page of scenes from the current plot graph.

get_story

ChatGPT

Return the current story plan and summary for a project without raw model traces.

get_ui_history

ChatGPT

Return a bounded page of typed generated UI history without storage keys, direct download URLs, raw errors, or provider diagnostics.

list_media_assets

ChatGPT

List durable media-library assets without requiring a project.

list_operations

ChatGPT

List recent MCP operations owned by the current login.

list_projects

ChatGPT

List workflow-backed projects.

list_workflow_asset_versions

ChatGPT

List a bounded set of selectable workflow asset versions without returning raw asset payloads.

move_scenes

ChatGPT

Move scenes within a chapter into an episode, optionally before or after one anchor scene. Without an anchor, Yoroll inserts them before the destination episode's current last scene. Returns a pollable idempotent operation.

publish_project

ChatGPT

Build, configure, submit, and monitor a project publication. Returns a pollable operation.

regenerate_character_image

ChatGPT

Regenerate one character portrait from its current prompt or a bounded prompt/reference override. Returns a pollable idempotent operation.

regenerate_character_sheet

ChatGPT

Regenerate a missing character sheet for a specific portrait history version. Returns a pollable idempotent operation.

regenerate_scene_image

ChatGPT

Regenerate one scene image from its current prompt or a bounded prompt/reference override. Returns a pollable idempotent operation.

regenerate_scene_video

ChatGPT

Regenerate one scene video with typed generation settings and owned media-library references. Returns a pollable idempotent operation.

remove_chapter

ChatGPT

Remove a chapter and its scenes and media from the project. Returns a pollable idempotent operation.

remove_character

ChatGPT

Remove one character from the story. Returns a pollable idempotent operation.

remove_episode

ChatGPT

Remove an episode and its scenes and media from the project. Returns a pollable idempotent operation.

remove_scene

ChatGPT

Remove one scene from a chapter. Returns a pollable idempotent operation.

remove_scenes

ChatGPT

Remove one or more scenes and their media from the project. Returns a pollable idempotent operation.

render_creation_menu

ChatGPT

Show the public Yoroll intent card when the user wants to create with Yoroll but has not chosen interactive game, image, or video. This tool never signs in, creates content, or spends credits. Skip it when the intent is already explicit.

reorder_scene

ChatGPT

Move one scene to a chapter using a 1-based index, or -1 to append. Returns a pollable idempotent operation.

select_asset_version

ChatGPT

Select an immutable workflow or per-entity media version, or explicitly restore automatic use of the latest non-UI version. UI requires an explicit version. Returns a pollable idempotent operation.

set_chapter_lock

ChatGPT

Set or explicitly clear the paid-content chapter boundary on this authored workflow canvas. This does not lock the account or restrict editor access. Returns a pollable idempotent operation.

set_chapter_start_episode

ChatGPT

Set the entry episode for a chapter, or pass an empty episode_id to clear it. Returns a pollable idempotent operation.

synthesize_dialogue

ChatGPT

Convert supplied text into newly synthesized dialogue audio (text-to-speech). This tool does not transcribe existing audio or identify speakers. Returns a pollable operation.

update_chapter

ChatGPT

Update one chapter's title, description, or owned cover URL. Returns a pollable idempotent operation.

update_character

ChatGPT

Update one character's name or profile. Returns a pollable idempotent operation.

update_episode

ChatGPT

Update one episode's title or owned cover URL. Returns a pollable idempotent operation.

update_episode_positions

ChatGPT

Update bounded positions for existing episode nodes on the authored workflow canvas. Unlisted nodes are preserved. Returns a pollable idempotent operation.

update_generation_config

ChatGPT

Update project generation model, resolution, and batch settings. Returns a pollable idempotent operation.

update_project_title

ChatGPT

Update only the project title. Returns a pollable idempotent operation.

update_scene

ChatGPT

Update one scene's authored content and typed natural, branching, or ending transition. Returns a pollable idempotent operation.

update_scene_positions

ChatGPT

Update bounded positions for existing scene nodes on the authored workflow canvas. Unlisted nodes are preserved. Returns a pollable idempotent operation.