Defend the Castle: Card TD

Small Giant Games · iOS

Defend the Castle: Card TD

Explore the ad evidence, study the storefront, and build your next acquisition hypothesis.

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01 / Creative research

Turn the unknowns into a research plan.

01

Check the acquisition promise

Read the store headline, screenshots and description. What problem is the app promising to solve?

Study the storefront
02

Look for ad evidence

Explore apps with direct store-link matches. Compare their hooks and formats without assuming the same approach works here.

Browse observed advertisers
03

Separate demand from paid growth

Store rankings and revenue estimates describe market context. They do not establish ad spend, conversions or ROAS.

Review the market context

02 / Storefront & product

Where the click lands.

Study the product story and store experience behind the acquisition funnel.

Screenshots

Defend the Castle: Card TD screenshot 1Defend the Castle: Card TD screenshot 2Defend the Castle: Card TD screenshot 3Defend the Castle: Card TD screenshot 4Defend the Castle: Card TD screenshot 5Defend the Castle: Card TD screenshot 6Defend the Castle: Card TD screenshot 7Defend the Castle: Card TD screenshot 8

03 / Market context

The business behind the app.

Keep revenue, downloads and store rankings separate from advertising performance.

How Much Does Defend the Castle: Card TD Make?

Monthly Revenue
$20.0K
Annualized estimate
$240.0K
Per Download
$20.00

Platform Performance

🍎iOS
Revenue
$20.0K
Downloads
1.0K
Rating
3.9 (36)

Rating Distribution

3.9
★★★★
36 reviews
5
17%
4
6%
3
8%
2
14%
1
56%

Top Countries

🇺🇸 US🇨🇦 CA🇦🇺 AU
Reviews (3)
★★★★katie68982/22/2026
Just some suggestions

It’s pretty fun but it would be nice to know what each card is weak against along with what they are strong against when we go to their details. Also it would be great if the card randomization could be better. I have been playing for like 3 months now and I can’t seem to get metal, poison, or ice cards when I merge, open random card packs, or play levels and if I do it’s extremely rare. Would be great if you improve the randomization. And the last update made the hordes a bit too difficult. My alliance went from completing every horde to struggling because it’s now hard to kill even just 200 or more zombies each attack (we were able to defeat 300+ before and at higher difficulties)

☆☆☆☆Pitsch911871/30/2026
Good game, balance is off

**Edit: had to drop to a 1*. The level scale is so bad. With all resources being as scarce as it is, the jump from one level to the next can take a week or more to level up. I am super close to max level on all my towers. I think at some point, the level will be impossible, even with the perfect draws. **edit: I hit the max I can get, I had all my best towers at almost max, they still just walked through. I cannot play campaign anymore. Great game. There are some balancing issues. In PvP, it needs complete rework. It should not be that you lose before you even play, but if they start with a pixie or a hard counter to all the cards in your starting hand, it’s gg, just scoop. There is not enough time to get enough damage out to stop them. All PvP players have max creatures, not sure how that’s possible in the lowest tier. I cannot play PvP anymore. Coins are pointless. If I see an award of coins, I either stop playing that mission or don’t even try for the achievement. You need something to put coins into. Events give you almost nothing but coins and emblems, but once you hit max level, not point. Gems are also almost not usefully, maybe a store item of high level cards. The packs are just hit or miss. Skip this game, do not give money to devs that release half made games. You will hit the max level, and you cannot play the game anymore.

★★★★kuboom110/28/2025
Decent game

This is a decent game overall, but the difficulty curve ramps up significantly as you progress. The main drawbacks are the repetitive maps and the limited methods for acquiring cards. A major point of friction is the overabundance of monster cards with no clear use; I'd prefer a higher probability of getting tower cards over monster cards. Alternatively, the ability to deploy or utilize monster cards during a level would greatly improve their value and overall gameplay.

Version History (15)
4.0.02/2/2026
3.1.31/22/2026
3.1.21/15/2026
3.1.11/8/2026
3.1.01/5/2026
3.0.212/2/2025
3.0.111/24/2025
3.0.011/19/2025
2.1.110/22/2025
2.1.010/16/2025
Available In (5 Countries)
🇵🇭 Philippines🇦🇺 Australia🇨🇦 Canada🇫🇮 Finland🇺🇸 United States
Supported Languages (19)
ArabicDanishDutchEnglishFinnishFrenchGermanIndonesianItalianJapaneseKoreanNorwegianPolishPortugueseRussianChineseSpanishSwedishTurkish
App Details

DECK BUILDING TOWER DEFENSE Defend your castle against hordes of enemies! Build your tower card deck and rank up your towers to defeat increasingly p...

iOS App ID
6743485492
Content Rating
13+
Min OS
13.0
Size
184.7 MB
In-App Purchases
Yes
Publisher
Small Giant Games
Fi

In-App Purchases (8)

NamePriceType
Pile of Gems$1.99One-time
Starter Pack$2.99One-time
Bag of Gems$4.99One-time
Bucket of Gems$9.99One-time
King's Pass$9.99One-time
Chest of Gems$19.99One-time
Barrel of Gems$49.99One-time
Wagon of Gems$99.99One-time