What the Luck?: CoOp Defense

Contains adsIn-app purchases
4.4
194K reviews
1M+
Downloads
Content rating
PEGI 7
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

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

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

4.5
177K reviews
Troy Mundy
September 3, 2024
Most players are nice and helpful in the chat feature. I love that strategy, and teamwork actually matters in this game. The shop prices are very high for what you get, so it's actually easier to get the stuff by playing. So, not pay to win imo. Overall, it's a really great game. If I were to add any improvements, it would be more characters in the chat box so I can say more than 6 words at a time. Also, a friends list. I often want to play more than one match with the players I meet.
85 people found this review helpful
Did you find this helpful?
Tom Adkins
August 16, 2024
Edit: Latest update as of 16/8/24 changes the in-game voices to English. Please can we switch it back? I much prefer the original language, it added so much charm! This is probably the only mobile game I've actually really enjoyed and intend to keep on my phone. It's simple, it's extremely fun, and it's full of charm (like when you recruit heroes they sing March of the Teriadore). 111% make great games. Simple as. I've enjoyed them all, and this is by far their best.
113 people found this review helpful
Did you find this helpful?
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.
176 people found this review helpful
Did you find this helpful?

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!