Google Play Stats
Updated periodicallyInstalls
100+
Last Updated
Dec 2025
About this game
Helle's Undersea City Project is a casual city-building simulation game played in portrait mode. Players construct and manage an underwater city, balancing resource management with aesthetic design. The game offers a relaxing experience with light story elements and moderate replay value, ideal for short, solo sessions.
Depth Score
ReplayabilityModerate
StoryLight Story
SocialSolo
DifficultyCasual
GrindMedium
Brain PowerLight
Story depthLight
Session Length
Short
Tags
✈️ Offline play👍 One-handed🔇 Mute-friendly⚡ No energy timers👶 Parent-friendly
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✈️
Fully Offline
Works anywhere. Yes, anywhere.
⚡
No Energy Timers
Play as long as you want.
☕
Cozy Corner
Warm, low-stakes, stress-free.
🚫
No Grind
Progress without the treadmill.
🏁
Proper Endings
Games that actually finish.
📅
Daily Games
One puzzle. Every day. Done.
🧠
Brain Off
No thinking required.
👫
Play Together
Two players, one phone or two.
📖
Story First
Worth reading every word.