MoltKeeper

Contains adsIn-app purchases
Content rating
Everyone
1K+
Downloads
Content rating
Everyone
Users Interact, In-Game Purchases
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

Build your own monsters, piece by piece, and watch them fight.

In MoltKeeper every enemy you beat drops samples of the parts it was wearing. Collect enough and that part is yours: research it, bolt it onto your creatures and take on something bigger. The tougher the fight, the better the loot.

BUILD SOMETHING WEIRD
Start with a body, then fill it with jaws, eyes, claws, tails, wings and a glowing core. Every part changes how your creature fights, so a tanky wall, a sneaky skirmisher and a long-range lobber can all start from the same body. Swap things around whenever you like.

SET UP, THEN SIT BACK
Place your squad and let the battle play out. Get your matchups right with elements and roles, then fire off a creature's core burst at just the right moment. Fights are quick, so one more stage is always easy.

GROW YOUR CREATURES
Level them up, Molt them into stronger forms and upgrade their parts all the way to five stars. Every Molt opens new sockets and makes room for wilder builds.

HUNT RARE MUTATIONS
Some parts never show up in the campaign. Track down the wild creatures carrying them and claim them for yourself.

TAKE ON OTHER KEEPERS
Send a copy of your best creature into the Wilds, where it shows up in other players' battles while you're away. Check back to see who it beat and what it brought home. In Rivals your own creatures attack other keepers' defenses every day, while you set up the defense they have to beat. Climb the weekly boards and fill the Renown season track with new looks.

FRIENDS, CLANS AND DUELS
Add friends, see their keeper cards and compare Keeper Power on the boards. Found or join a clan and take on the weekly clan hunt together. Challenge a friend to a duel: you both place your creatures blind, then watch the fight play out. Duel invites reach your phone even when the game is closed.

EXPEDITIONS AND THE DEEP
Send creatures off on expeditions to gather loot while you're offline. When you've beaten the campaign, dive into the Deep: tougher and tougher floors that start fresh every week, guarded by Deep Lords and stuffed with parts you can't find anywhere else.

PLAY YOUR WAY
Quick sessions or long ones, it's up to you. Timers keep running when the game is closed, and your phone can let you know when something's ready.

FAIR TO PLAY
MoltKeeper is free to play. Amber speeds things up and unlocks cosmetics, but looks never change a fight. Ads are optional and stay off unless you switch them on.

8 chapters, 200 stages and nearly 100 parts to collect. Play on your phone or PC with the same account.
Build monsters from the parts you win, then send them into auto battles.
Updated on
Oct 25, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Personal info, Financial info, and Device or other IDs
  • This app may collect these data types
    Personal info, Financial info and 2 others
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

MoltKeeper 1.3.3
• Sunder, a new effect that cuts an enemy's armour, carried by seven reworked parts
• Shooters keep more of their attack at range; armour past 100 counts for less
• Every campaign stage and champion set again, with more varied waves
• The Deep's page redrawn, with the weekly reward in view
• A new scene when you raise a generation
• Short phones fit: the screen scales, and Options gains Smaller
• Doubling a win pays its Essence again too
Content rating
Everyone
Users Interact, In-Game Purchases
Learn more

App support

About the developer
ReferenceNull LLC
josh@referencenull.com
2108 N St Pmb C Sacramento, CA 95816-5712 United States
+1 619-350-6034