How to Become a Mermaid, How to Change Back Into a Human and All Available Cheat Codes in The Sims 4: Island Living

If you want to make the most out of this new expansion, check out this guide.

Perhaps the single most noticeable change introduced by the new expansion The Sims 4: Island Living is the ability to turn your sim into a mermaid (siren). After all, players have been excited for the big change weeks on end. Now, the time has finally come to see what all of the fuss is about.

If you want to transform your sim into a mermaid, figure out how to morph them back into a human or just want to see what new cheats this expansion is introducing, we’ve got you covered. Check out the information below for all of your The Sims 4: Island Living needs.

Looking for how to become a Mermaid without Island Living or A Deeper Mermaid Experience?

Expanded Mermaids is the best Mermaid mod right now for Sims 4. Even older Mermaid mods like IL – Sirens have forked into, merged into or is part of Expanded Mermaids already.

How to Become a Mermaid in The Sims 4: Island Living

The Sims 4: Island Living is filled with a ton of new features. Among them, players can now become mermaids. That being said, it will take a little work if you want to make the mythical transformation a reality.

How to Make a New Mermaid Character in The Sims 4: Island Living

sims 4 mermaid

The easiest way to become a mermaid is to create an entirely new character within the expansion. From there, click on the small icon at the bottom left corner of your screen so that you can “add a Sim.” From there, select the “special occult lifestyle” choice and you will then be presented with the option to make your new character a mermaid (siren).

Your mermaid can be customized from within the “Siren Editor,” assuring that the new feature is crafted to your liking. That being said, you can also transform a previously made character into a mermaid if you so choose.

How to Transform an Old Character Into a Mermaid in The Sims 4: Island Living

Island Paradise Mermaids

There are a few ways to turn a preexisting character into a mermaid in The Sims 4 Island Living expansion pack:

  • Purchase Mermaid Kelp for 500 Satisfaction points in the rewards store menu. This is the easiest method.
  • Find Mermaid Kelp randomly while diving for treasure at deepwater buoys, after acquiring the special treasures tool.
  • Discover Mermaid Kelp randomly in the hidden cave on the Island of Mua Pel’Am.

Once you acquire Mermaid Kelp, have your Sim consume it. They will experience a “Strange Sensation.”

If your Sim enters water within 24 hours of consuming the Mermaid Kelp, they will transform into a mermaid. If they do not enter water within 24 hours, the effects will wear off.

Playing as a Mermaid in The Sims 4: Island Living

Untitled 9

Once you become a mermaid, a few things will change. For starters, you will still retain your human form as long as you are on land. However, you will transform into your mermaid form whenever you enter a body of water.

While in your mermaid form, you will have a faster swimming speed and will be more effective at free diving. However, you will no longer be able to use scuba gear or snorkels.

Even when in your human form, your Hygiene feature will be replaced with a “Hydration” feature. This value will decrease the longer you spend time out of the water. Rather than die when your Hydration becomes too low, you will only begin to stink.

You will also gain a few mermaid spells. However, the spells are not very powerful. Still, it’s a nice change of pace.

How to Change Your Mermaid Back Into a Human in The Sims 4: Island Living


If you decide you are not enjoying your new mermaid form, don’t fret. It’s a reversible state.

In order to change back into a human once you have become a mermaid, you will need to consume two pieces of Mermaid Kelp and then reenter a body of water. After this, you will be back to your human form.

You can always eat another piece of Mermaid Kelp and return to the ocean if you want to become a mermaid once more. Beyond that, once in your mermaid form, you can also consume a single piece of Mermaid Kelp to earn a quick buff to your character.

All Cheat Codes in The Sims 4: Island Living

maxresdefault 23

The new expansion pack is chock full of interesting cheat codes that console and PC players alike can take advantage of. If you want to utilize these fascinating features, however, you are going to have to follow a quick command.

How to Activate Cheat Codes in The Sims 4: Island Living


In order to use a cheat code on console, you will have to press L1, L2, R1 and R2 simultaneously on Playstation 4 and press LB, RB, LT and RT simultaneously on Xbox One.

In order to use a cheat code on PC, press CTRL, Shift and C simultaneously. On a Mac, you will have to press Command, Shift and C at the same time. Once you have opened the command, type “testcheats true.”

Once these steps have been taken, you will be ready to activate your cheat codes.

Every Cheat Code Available in The Sims 4: Island Living

561b57e5 the sims 4™ island living official reveal trailer 171

There are a total 15 cheat codes within the game as of now. Once you have followed all of the steps listed above, the final step is to type in the cheat code commands listed here. Check them all out within the list below.

Cheat CodeDescription
traits.equip_trait trait_OccultMermaid Transforms your sim into a mermaid.
traits.remove_trait trait_OccultMermaid Restores your mermaid sim to a human.
traits.equip_trait trait_OccultMermaid_Mermaid_MermaidForm Allows your sim to retain their mermaid tail when on land.
careers.add_career Conservationist Adds the conservationist career to your sim.
careers.promote Conservationist Levels up your sim’s conservationist career.
careers.remove_career Conservationist Removes the conservationist career from your sim.
careers.promote PartTime_Diver Promotes your sim within the part-time diver career.
careers.promote PartTime_Fisherman Promotes your sim within the part-time fisherman career.
careers.promote PartTime_Lifeguard Promotes your sim within the part-time lieguard career.
traits.equip_trait trait_BeachBum_LaidBack Sims featuring the “Laid-Back” feature will never be tense.
traits.equip_trait trait_Hidden_IslandAncestor_Elemental Your sim will be embued with Sulani’s energy, allowing them to improve plant quality and cause volcanic erruptions.
traits.equip_trait trait_NaturalSpeaker Your sim becomes more friendly, making relationships easier with other characters.
traits.equip_trait trait_FriendOfTheSea Your sim can now manuever within the ocean more effectively. Your sim also befriends mermaids and dolphins more easily.
volcanic_eruption small If the volcanic activity feature has been activated, then small lava bombs will rain on the island.
volcanic_eruption large If the volcanic activity feature has been activated, then large lava bombs will rain on the island.

Hunter Boyce is a writer, which probably seems pretty obvious with "author" prominently displayed. He mostly writes about video games. However, he was previously a mixed martial arts news writer. When not writing about people pelting each other in the face or about leveling up in the latest RPG, he tends to spend his time as a web producer in Atlanta. You can shout all of your MMA and video game related quandaries at him at @SomthinClever on Twitter. Feel free to make your demands to him in ALL CAPS. He loves that.

Comments are closed.