What the Luck?: CoOp Defense v1.8.5

111%

Contains ads • In-app purchases

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About this app

Developer Description

Epic Clash of Survival! A Casual Tower Defense 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

What's New

■ Christmas Event: Fishing Festival!
- Various Rewards and Limited Skins Await!
■ New Mythic Guardian: Birdraw!
- The Immortal Guardian, Boss Birdraw, is also available!
■ New Skin - Takoyaki Graviton
■ Bug Fixes & Other Improvements

In-app purchases

$0.99 - $109.99 per item

Version Information

Version: 1.8.5
Downloads: 5M+
Updated on: Dec 15, 2025
Released: May 23, 2024
Requires: Android 7.0

Statistics

Google Play Rating History

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What the Luck?: CoOp Defense has been downloaded times.

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What the Luck?: CoOp Defense - Google Play Rankings

Rank	Country	Category	List	Change
				—

No ranking data available yet. Rankings are updated daily.

#66 in Top Grossing Casual in United States

#65

Monster Survivors

#66

What the Luck?: CoOp Defense

#67

Animal Hunter : Wild Sniper

#1 in Top Grossing Casual in South Korea

What the Luck?: CoOp Defense

Gardenscapes #3

귀판오분전-444뽑기 증정

#14 in Top Grossing Casual in Egypt

#13

Candy Crush Soda Saga

#14

What the Luck?: CoOp Defense

#15

Truck Star

#16 in Top Free Casual in South Korea

#15

Candy Crush Saga

#16

What the Luck?: CoOp Defense

#17

Aqua Romance: Sort Journey

What the Luck?: CoOp Defense users say on Google Play

★★★★★

Sam Weaver

Hello. Love the game, please change the name back to Lucky Defense. Thank you! seriously.... please stop changing the name... the reddit can't keep up.

★★★★

Gizmo

game is fun, one of the better mobile games out there for sure with ads only for rewards and a very fun gameplay loop. the only reason I had to give it 4 stars is it has the bad mobile game trope of ramping the difficulty to an insane degree at about level 60, you will just be stuck there for most of your time playing as the enemies suddenly become an insane level of tanky. also some ads crash the game and cause you to not get the reward which sucks. but overall good fun :)

★★★

An Đặng

Nice game but you'll get more luck if you invest your money, otherwise you always get bad luck. Lost my account permanently with Google refund and I didn't know that you specifically had to do it through the customer service.

★★

luqsatch

“Frustrating game, no luck at all. Everything feels so scripted, unless you’re willing to pay for in-game items. I’m playing with lower-level players who are fully upgraded, but the heroes that spawn for me are always the low-tier ones. I don’t know, man… it’s just frustrating. another bad luck, out of 6 diamonds only 1 can spawn heroes with 60% chances. gonna uninstall it soon.

★

Paula Dominy

This game's name is terrible. I love the devs but they ruined everything with the name being so close to you know what... PLEASE change the name to something better, because I uninstalled it before I even opened the game due to the loading screen animation. WHY RUIN MY LOVE?!?!