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The ruler of the underworld has given you the task of spreading fear and terror among the slumbering people of the world in order to expand his power and take control over humanity.

To do this, you have to create new horrible monsters to send out into the nightmares of humans. The more monsters you produce and train, the faster and better you will be able to complete your missions! Also, you will be rewarded with golden skull coins - and maybe there's a promotion in store for you as well!

Build your own monster empire
Manage production labs and create new monsters
Unlock new countries and cities
Become the master assistant to the ruler of the underworld
Innovative achievement and research tree
☠️Download Monster Idle Empire NOW and unleash your monsters!
Even when you are offline, your monsters will continue to earn winnings and conquer cities for you.
It's monstrous fun for everyone!

In the tradition of classic idle games, Monster Idle Empire requires you to produce monsters non-stop in your dark laboratories. You have to train vampires, zombies, werewolves, and lots of other cool monsters in your monster boot camp so they will become real masters of terror. Use the zapper portals to let your creatures loose on unsuspecting dreamers and turn their sweet slumber into real nightmares. That's what the Dark Lord pays you for, after all! With every scream, you will earn gold coins, which you need to expand your monster empire! The Dark Lord has given you a limited budget, but he expects GREAT things from you. If you fail, he will... Well, you better not disappoint him!

// Option A //

To download Idle Monster Empire mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Idle Monster Empire mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Idle Monster Empire from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Idle Monster Empire in HappyMod App.