What the Luck?: CoOp Defense

Contains adsIn-app purchases
4.2
193K reviews
1M+
Downloads
Content rating
USK: Ages 16+
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About this game

How far can your luck take you? Have you tested your limits?
Introducing the ultimate luck-based tower defense game!
Try "What the Luck?" now and push your LUCK to the extreme!

🍀 Summoning units is all based on LUCK! Beat the odds!
🍀 Yes, it's a tower defense game! Defeat the monsters!
🍀 You can also merge units! You just never know what you'll get!
🍀 Feeling LUCKY? Take a big swing with the roulette!

To rise or to fall, LUCK is the question!
What the Luck? - A casual tower defense all about LUCK
Updated on
Oct 24, 2025
Available on
Android, Windows*
*Powered by Intel® technology
Events & offers

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
Location, App activity, and Device or other IDs
This app may collect these data types
Location, Personal info and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.2
176K reviews
Acolyte Bazel
December 21, 2024
The game is super fun, really rewarding when you pull off risky plays. My only issue is how some things aren't properly explained, like the Dragon and how Eggs are supposed to be merged. I still can't figure it out even with a Google search. Outside researching aside, though, I love the events, and the mechanisms the game uses. Super fun, unpredictable, and great to see the community come together during events.
174 people found this review helpful
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Ellis
January 17, 2025
I generally really enjoy the game, but it's been lagging a lot lately, making a smooth run almost impossible. It's frustrating at times due to being a luck based game, that is to be expected and I'm okay with that, but when it's lagging it just makes it 10 times worse and I always feel bad for my team mate that has to deal with me struggling because of the lagging. Aside from that it's really fun, so I hope that will be fixed soon
8 people found this review helpful
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111%
January 22, 2025
Hello, this is 111% Support Team. We sincerely apologize for the inconvenience you have experienced. We’ll transfer your valuable feedback to the relevant team for improved services. Once again, thank you for sparing your time for the comment, and please be reminded that you may always contact us via in-game support as well. Thank you.
Dawn B
November 19, 2024
Game is good but can be frustrating as you rely totally on luck to get the draws to summon mythics. Need to implement a withdraw from games though. It stupid annoying when you get paired with someone that just doesn't really play and you end up wasting your time for 10 to 15 mins waiting for the game to end. You can't even close the app and reopen it. Will just put you right back into the game you're trying to leave.
69 people found this review helpful
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What’s new

■ One Guardian, Two Strategies! [Immortal] Ace Bat Man!
■ New Feature: ‘Mythic Guardian Reset’
■ Spooky and Sweet! The Halloween Event Begins!
- Don’t miss your chance to obtain Limited Skins!
■ New Content: Endless Mode Now Open!