Deep Sea

Subnautica-meets-terraria in 2D using Godot

Mechanics

Subnautica

• travel depth limited by player progression
• snap-fit & modular base building
• energy generators (solar, bioreactor, nuclear, ionic)
• built-in AI/story driven guide

Terraria

• projectile based combat
• unload to nearby chests inventory mechanic
• fishing
• well defined biomes
• multiple progression routes (ranged, melee, magic)

example game design document

Characters

Story

Theme

Story Progression

Gameplay

Goals

User Skills

Game Mechanics

Items & Power-ups

Progression & Challenge

Losing

Art Style

Music & Sounds

Technical Description

Marketing & Funding

Demographics

Platforms & Monetisation

Localisation

Other Ideas