Game guide

Mermaid Castle Tycoon Guide: How to get started

Mermaid Castle Tycoon

Primorra Games, Playing 0, Rating 68.4%

Creator Primorra Games

Playing 0

Rating 68.4%

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About

Overview

Mermaid Castle Tycoon is an underwater tycoon game where you collect gold, build up your own Atlantis, and fight powerful enemies. You can play with up to four people at the same time.

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What is on this page

Contents

01 How to get started Step 02 Starting bonuses worth grabbing Check 03 Playing with others Tips 04 Glossary Words 05 Common questions FAQ

みんなの攻略ノートとコツ

見つけたコツや、とっておきの攻略をみんなに教えよう！画像付きのノートも大歓迎！

How to get started

Step

In short Defeating enemies earns gold, and gold lets you expand your castle.

When you first join, you have a castle to build and enemies to fight. Defeating enemies is how you earn gold, and gold is what lets you expand your castle.

Defeat enemies to earn gold.
Spend your gold to add new facilities and grow your castle.
As your attack power grows, take on stronger enemies.

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Starting bonuses worth grabbing

Check

In short Two separate bonuses can each give you 5,000 gold when you join.

Both bonuses are awarded when you join the game.

Roblox Premium membership grants 5,000 gold when you join.
Membership in the game's Roblox group also grants 5,000 gold on joining.
Premium is not required to play.
Joining the group is not required either.

Playing with others

Tips

In short Up to four players can share the same room and work on the same castle together.

Up to four players can share the same room and work on the same castle together. Teaming up means you can bring down tougher enemies and collect gold together.

Tips worth knowing

Up to four players can join the same room and build alongside each other.
Work together to defeat strong enemies.

Glossary

Gold: The main resource in the game, earned by defeating enemies and used to build and expand your castle.
Atlantis: The underwater castle you construct throughout the game.
Tycoon: A game genre where you steadily build up a structure or business by earning and spending resources.

Common questions

FAQ

How many players can be in one room?

Up to four players can join the same room at once.

Do I need Roblox Premium to enjoy the game?

No — Premium is not required. Premium members do receive a one-time bonus of 5,000 gold when they join.

Is joining the game's group worth it?

Group members receive 5,000 gold when they join, and group membership is not required.

Updated Oct 28, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.

Mermaid Castle Tycoon Primorra Games, Playing 0, Rating 68.4%

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