The new Lost World version of the game adds a map to the game. Players continue to explore the world with their team by gathering useful items and changing some mechanics involving tripwires, a long-used game mechanic. Some flying creatures aren’t affected by tripwire changes. A new feature can help players recognize newly collected items when they initially encounter them. Characters with specific stats can break through some common game flaws.

Players in Lost World encounter two characters named Alvin and Lillian. A specific event caused them to become stranded in a non-human area, but they observed something unusual afterward. Searching for answers, the group traveled to see the manmade structures. They found no sign of any human, instead discovering that their problems had no solution.

During Lost World's exploration, the characters could not see anything behind the black mists that appeared on the map. This added to the drama of the journey as they tried to understand what might be beyond their grasp. This game doesn’t require much manual dexterity because it automatically operates. After choosing an area you can access, you watch the character enter as an observer.

When heading to Lost World regions, you’ll view a list of what the character is currently engaged in. Furthermore, each area can provide new resources that aid in crafting new equipment and items for the character to work on. When exploring the world, you may come across monsters. These creatures make any exploration difficult, but if you're fortunate you may discover a monster's card. This item allows you to use money to summon monsters to help fight for you and become allies. ———

The land where the two men and women had landed.
There were no figures on the ground, only strange moaning sounds.
It seemed that something was happening to this land.

There are many structures on the land that seems to have been built by humans, but there are no people in sight.
Why have these two people landed on this earth?
What is going on in this land?
The story progresses, shrouded in mystery...

—
This is a game that you can play by completing the main story.
This game is an autoplay RPG game when you're working on the main story, besides you can tell it to level up or collect materials and leave it to collect materials on its own.
Enjoy the adventure by using the monsters and materials you've added to your team.

Also, in this game, you can make things you need for exploring by processing the things you get from exploring (leaving them alone).
Use the "materials" you get in the game and the "money" you get from exploring to make weapons and armor to build a stronger party.

New mechanics you can adapt from.
A JOURNEY TO DISCOVER WHAT’S HAPPENING IN THE WORLD.
EXPLORE DIFFERENT AREAS
Unlock various objects with this key.

// Option A //

To download Lost World - 失われた世界 - mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Lost World - 失われた世界 - 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 World - 失われた世界 - 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 World - 失われた世界 - in HappyMod App.