1. Overview

High Concept

Sea Sketcher is a cosy, exploration-driven ocean adventure where players sail across a vibrant, living world, documenting their discoveries through sketches, photographs, and captains’ notes. As they chart islands, ecosystems, and gentle sea monsters inspired by real marine life, players uncover a quiet story about the importance of understanding, not exploiting, the world beneath the waves.

Core Pillars

1. Gentle Exploration – Discover a vast ocean at your own pace, rich with islands, wildlife, and secrets.
2. Creative Documentation – Sketch, photograph, annotate, and collect samples to build your personal world atlas.
3. Living Creatures – Encounter curious sea “monsters,” each based on real marine biology and ecological behaviours.
4. Cosy Narrative – A reflective story encourages players to explore, learn, and connect with the ocean’s mysteries.
5. Environmental Appreciation – Discover how ecosystems thrive — and how human activity changes them.

2. Setting & Tone

World

The world is an archipelago-filled ocean dotted with unique islands, coral atolls, fog-covered cliffs, mangrove labyrinths, and volcanic reefs. Beneath the waves lie species ancient and strange, their behaviours rooted in real-world ocean ecology.

Tone

• Soft, warm, reflective
• Curious rather than threatening
• Inspired by nature documentaries, travel journals, and watercolour art
• Comfortably paced, no combat
• Emotional undertones tied to wonder, growth, and connection

3. Narrative

Premise

You are an apprentice cartographer aboard a small research vessel left to you by your mentor, a renowned explorer who vanished on their final expedition. Their incomplete world atlas sits on your desk, full of blank pages and half-finished sketches.

Your goal: complete the Atlas and uncover what your mentor was searching for.

Story Themes

• Curiosity over conquest
• Learning to see the world with intention
• How ecosystems interconnect
• Respect for the unknown
• The value of documentation and storytelling

Story Progression

The narrative gently nudges players forward:

• Lost letters and logs from your mentor
• Rumours from island communities
• Clues hidden in creature behaviour
• Environmental mysteries: coral bleaching, migrating species, underwater ruins

The story unfolds naturally as players document the world.

4. Gameplay

4.1 Exploration

• Sail a customisable ship across an open ocean.
• Discover new islands, currents, biomes, and underwater zones.
• Weather, tides, and time of day affect what you can find.
• Use tools to navigate: compass, star charts, sonar, wind maps.

4.2 Documentation Tools

Players choose how they want to log discoveries. Every discovery type creates an entry in the Atlas.

Sketchbook

• Freehand sketch mode (simple, cosy-friendly).
• Choose from watercolours, pencil, and ink.
• Sketch creatures, coastlines, ruins, or ship logs.
• Improves with player practice but stays stylistically charming.

Camera

• Capture photos of wildlife, weather, and landmarks.
• Unlock lenses: macro (for tidepools), wide (for leviathans), low-light.
• Creatures react differently to cameras (curiosity, surprise, playful interactions)

Notes & Journaling

• Type or select pre-written notes.
• Document behaviour patterns, migrations, feeding habits, and island folklore.
• Works hand-in-hand with story clues.

Environmental Samples

• Ethically gather non-harmful items: shells, fallen coral, driftwood, algae.
• Each sample unlocks educational notes about ecosystem functions.
• Combines with sketches/photos to deepen entries.

Mapping Tools

• Manually outline coastlines by sailing near them.
• Mark points of interest.
• Add your own symbols (campsites, ruins, currents, creature sightings).
• Completing a region’s map unlocks narrative beats.

5. Sea Creatures

General Design Philosophy

Creatures are:

• Curious, not aggressive
• Inspired by real animals (whales, jellyfish, oarfish, squid, manatees)
• Larger-than-life but gentle in demeanour
• Behaviour-driven (schools, migration, bioluminescent patterns)

Interactions

• Sketch their outlines from afar
• Photograph unique behaviours
• Follow them on their routes
• Learn how their environment shapes them (and how human activity affects it)
• Some creatures guide you to story landmarks

Example Creatures

• Glassback Ray – A manta-like giant with translucent wings glowing like stained glass.
• Echolight Pod – A family of “whales” that communicate through visible pulses of colour.
• Crescent Tide Serpent – An oarfish-inspired ribbon creature that follows ocean currents.
• Bloomback Jelly – A titan jellyfish whose tendrils feed entire reef ecosystems.

6. Ship & Progression

Upgrades

• Faster sails
• Better cameras
• Sketch tools
• Atlas expansions
• Lanterns for night exploration
• Drones for underwater photography
• Environmental sensors (salinity, temperature, pollution levels)

Upgrades are gained through:

• Exploration milestones
• Helping island communities
• Documenting new species or terrains
• Story progression

7. Core Gameplay Loop

1. Set sail toward uncharted territory
2. Discover an island, anomaly, or creature
3. Document it using tools (sketch/photo/note/sample/map)
4. Add it to your Atlas
5. Return to your ship to rest, reflect, or analyse findings
6. Receive new clues or story hints guiding your next journey