GET YOUR BEARINGS
Plan your next Helle's Undersea City Project - Bringing Air to The Garden session
Our guide helps you compare the core systems of Hele's Undersea City Project, offering observations that let you plan efficiently without relying on hidden mechanics. By examining air production, building placement, exploration, research, and narrative elements, you can shape a thriving underwater settlement while enjoying the game's charming characters and story.
01 / THE GUIDE
Air Supply Balance
Compare the supply range and air‑cylinder accumulation of different Mira Flower types. Note which combinations keep air levels stable as you expand, and adjust planting locations accordingly.
- Observe which Mira Flower types give the highest supply range for your map layout.
- Balance planting multiple flower types to maintain steady air flow as you expand.
02 / THE GUIDE
Road Network Planning
Sketch a basic road layout before placing buildings. Observe how early road connections reduce later re‑routing and keep all structures powered by air.
- Prioritize road connections early to avoid later re‑routing.
- Place dwellings near air sources to keep residents supplied.

03 / THE GUIDE
Exploration Efficiency
Track payload upgrades versus HP/air upgrades on your boat. Identify which upgrade yields the most valuable items per trip for your current city stage.
- Upgrade payload first to carry more items per trip.
- Keep an eye on boat HP and air to avoid mission failure.
04 / THE GUIDE
Research Prioritization
List research items that unlock new building categories. Prioritize those that fill gaps in your current infrastructure, such as processing facilities for resource conversion.
- Focus research on items that unlock new building categories.
- Track which research unlocks tourist events for additional income.
05 / THE GUIDE
Character Interaction Impact
Record dialogue cues from resident dot‑pictures. Notice any hints they give about preferred building locations or resource needs, and use those clues to refine your city layout.
- Engage with each resident to discover unique dialogue snippets.
- Observe how character personalities influence building placement preferences.




