Launch Commemorative Gift
50,000 Gems, 200 Draw Tickets each
Welcome Coupon: /100yearswar

Raise Eco to Restore Humanity
100 Years War: Idle

Easy and Fun for Everyone
Enjoy rapid and fun growth even as a free user
Convenient without complicated systems to study

Powerful and Dazzling Helpers
Helpers that grow stronger the more you collect
Summon up to 3 at the same time to deliver a concentrated barrage on enemies!

Defeat Monsters to Purify the Earth
Defeat enemies for humanity
Raise Eco to enjoy defeating powerful enemies

Guild System: The Flower of Content
Create your own guild and grow it with guild members
Contribute to the guild and raise Eco stronger

Various Adventures for Eco's Growth
Mimic Dungeon, Orc Dungeon, Golem Dungeon, Vault Dungeon, Skill Dungeon, Parts Dungeon, Silis Dungeon, Guild Dungeon

My Own Eco
Show off your individuality with weapons, Eco skins, and stickers

// Option A //

To download 100 years war - Idle mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download 100 years war - Idle 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 100 years war - Idle 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 100 years war - Idle in HappyMod App.