★★★★★ Opening Event ☆☆☆☆☆
5,000 free Lua!
Double rewards for accomplishing feats!


■■■ Game Characteristics ■■■

★ Dungeon exploration
'A random dungeon system that changes dungeons every time you enter!!'

Fight monsters, pass booby traps, and find treasures.
To prepare for battle with the monsters, use the treasures you find to upgrade your hero.
Once your hero is strong enough, try taking on the 『Ruins』 for each attribute, and the 100-story 『Labyrinth』.

★ Summon card

'Enough of the same skills and the same card battles! ! Try summon cards used by heroes'

Collect Summon Cards, featuring elegant illustrations.
Each card has unique active and passive skills.
Make your hero even stronger with these powerful cards, which increase in power as their numbers grow.

★Real-time battle

'Instead of getting frustrated with your character, plan and engage in dynamic battle!

Enjoy strategic, real-time battle.
Battles progress based on the formation and attack attributes of your hero.

Use a Summon Card at just the right time to trigger a combo that will give you the upper hand in battle.
Discover hidden series combos that will further upgrade the effect of your skills.


■ If you experience an error while installing the app, try the following

- Make sure you have at least 1G space on your external memory (SD card)
- Install after removing external memory (the external memory can be inserted again after installation is successful.)
- Remove the installed app using your Application Manager, turn your device off and back on again, then re-install the app.


■ Note

- Due to the limitations of the Android platform, a sudden loss of power to the device may lead to the loss of your current data.
If your battery is low, be sure to save your progress to the Cloud using the Save button on the home screen.
- Be sure to set the 'Google Play Game' app to 'Use'.
If the 'Google Play Game' app is disabled or force closed, the game will not run.


■ Lost Keeper requires the following permissions, and does not ask for other unnecessary permissions.
- Read/write to eternal storage (WRITE_EXTERNAL_STORAGE)
This permission is used to save Lost Keeper data to external storage, and to load Lost Keeper data.

// Option A //

To download Lost Keeper (Service End : 6/24) mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Lost Keeper (Service End : 6/24) 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 Lost Keeper (Service End : 6/24) 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 Lost Keeper (Service End : 6/24) in HappyMod App.