Bloons Card Storm vs Underdark
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bloons Card Storm
Engage in a strategic collectible card game with iconic characters. Build powerful decks, master hero abilities, and battle opponents in PvP or solo adventures. Craft unique cards and balance offense and defense to claim victory.
- Collectible card game mechanics
- Hero abilities and unique characters
- Deck building and card crafting
- PvP and single-player modes
- Cross-platform play
- Balance offense and defense
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The Storm gathers, and only true Heroes can stem the Bloon tide. Gather up your cards, choose your favorite Hero, and enter the Arena to claim victory! From the makers of Bloons TD 6 comes a revolutionary collectible card game featuring the fan-favorite Monkeys and Bloons, rendered and animated in gorgeous 3D. Develop deep strategies, build your collection by crafting awesome cards, and carefully construct decks to help you win PvP and single player games. Featuring 4 unique Heroes with 3 Hero Abilities each, 130+ cards at launch, and 5 different Arenas to battle on, the tactical combinations are endless! BALANCE OFFENSE AND DEFENSE Monkeys can't attack other Monkeys, so you'll need to stock up on both Bloon AND Monkey cards in order to win. Send Bloons swarming at your opponent, fend off opposing Bloon rushes with your Monkeys, and find that perfect balance essential for victory! USE HERO ABILITIES WISELY Playing Bloons will power up Hero Abilities that can turn the tide of battle in your favor. Whether it is Quincy with his bow or Gwen with her flamethrower, each Hero has a unique set of potent Hero Abilities. Choose them wisely! TEST YOURSELF IN SOLO ADVENTURES Looking for something more relaxing than fur-flying PvP action? Our solo Adventures are crafted single-player experiences that will test your deck building and game management skills to the limit. Try out the Prologue Adventures or support the game by buying the full DLC Adventures. FULLY CROSS-PLATFORM Take your collection of Bloons and Monkeys with you wherever you go, as Bloons Card Storm is fully cross-platform - just register your account and your progress stays with you. BUILD THE BEST DECKS Build crazy combo behemoths, fun theme decks, or use the latest meta decklists - the choice is yours! PLAY AGAINST YOUR FRIENDS Private match support at launch so you can challenge your friends to a game anywhere, anytime! Matchmaking is also fully cross-platform so what are you waiting for? Download now and join the Card Storm!
Underdark
Defend the Eternal Flame from relentless dark forces in this tactical tower defense game. Strategically place towers, choose powerful buffs, and level up unique heroes to forge an impenetrable defense. Enjoy one-handed gameplay for strategic fun anytime, anywhere.
- Defend the Eternal Flame
- One-handed gameplay
- Customize defense strategy
- Level up heroes
- Strategic tower placement
- Choose growth buffs
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Defend the Flame from the dark! Level up, strategically place towers, and choose buffs to grow stronger. Keep the light alive! Defend the Eternal Flame: Experience the thrill of defending the flame from hordes of dark forces that besiege it! Feel the exhilaration as you clear stages, with each victory more satisfying than the last. One-Handed Gameplay: Enjoy easy-to-master controls, designed for one-handed play. Perfect for strategic fun anytime, anywhere. Customize Your Defense Strategy: Select buffs and strategically place towers to forge your path of resistance. As you level up and choose your growth buffs, your defense becomes an impenetrable fortress. Heroic Stand: Choose your guardians to stand against the night. Each hero brings unique abilities to the battlefield. Earn trophies, level up, and enhance your heroes to ensure the flame flickers on through the darkest nights!
Screenshots
Verdict
The clearest difference is update cadence: Underdark at every 4 days against Bloons Card Storm's every 3 weeks. Underdark also leads on review sentiment (72% vs 59%). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Bloons Card Storm sells 10 one-off in-app purchases and Underdark sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Underdark holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 2.9K and 4.1K respectively. Written reviews point the same way: 59% of Bloons Card Storm's written reviews are positive against 72% of Underdark's.
Bloons Card Storm ships an update every 3 weeks, Underdark every 4 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.
| Parameter | Bloons Card Storm | Underdark |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (2.9K ratings) | 4.8 (4.1K ratings) — better |
| Positive reviews | 58.5% of reviews | 72.0% of reviews — better |
| Number of ratings | 2.9K | 4.1K — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 480 MB | 521 MB |
| Age rating | 9+ | 4+ |
| Developer | Ninja Kiwi | SeungHo Chung |
Customer experience
Bloons Card Storm
Underdark
User reviews
Bloons Card Storm
From 2.9K App Store ratingsWhat we love
- 👍 Great gameplay and strategy
- 🥝 Unique Bloons-themed card game
- 💎 Decent monetization, no predatory loot boxes
- 🎨 Visually appealing art style
Room to improve
- 🐢 Slow progression and resource acquisition
- 🕹️ Clunky mobile interface, small UI elements
- 🔍 Lack of content, limited single-player modes
- 🤯 Matchmaking and connectivity issues
Underdark
From 4.1K App Store ratingsWhat we love
- 🚀 Addictive gameplay
- 👍 Generous with rewards
- 🚀 Smooth performance
- 👍 No forced ads
- 👍 Unique tower defense mechanics
Room to improve
- 🐛 Multiplayer issues
- 🔋 Battery drain
- 🔒 Paywall for progression
- 🔒 Excessive microtransactions
- 🔒 Confusing UI with too many menus
Bugs and requests
Bloons Card Storm
Reported bugs
3 issues- Game crashes and disconnects
- Progression loss when opponents quit
- Unresponsive UI and control issues
Requested features
4 requests- Ranked/competitive modes
- More single-player content
- Improved deck building and customization
- Better rewards for completed matches
Underdark
Reported bugs
3 issues- Goblin tower factory causing game slowdown
- Consecutive login rewards reset after updates
- Invisible towers in multiplayer
Requested features
5 requests- Ability to rotate towers
- Move towers after placement
- More enemy variety and animations
- Improved co-op mode
- Simplified progression system
In-app purchases
Bloons Card Storm
- 2000 Universal Tokens$0.99
- 10500 Universal Tokens$4.99
- Obyn Hero Bundle$5.99
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- Starter Pack$6.99
- Founder's Pack$7.99
- Holiday Bundle$8.99
- Adora Hero Bundle$9.99
- Amelia Hero Bundle$9.99
- Amelia Mega Bundle$14.99
- 44000 Universal Tokens$19.99
Underdark
- daily_package_01$0.99
- blade_pakcage$2.99
- daily_package_02$2.99
Show 7 moreShow fewer
- exp_2x$3.49
- Event Package 2$3.99
- add_speed$7.49
- season_superpass_1$7.99
- pack_remove_ads$7.99
- pack_remove_ads2$10.99
- season_hyperpass_1$18.99
Questions
Is Bloons Card Storm free?
Is Underdark free?
Which has better reviews, Bloons Card Storm or Underdark?
Do Bloons Card Storm or Underdark have ads?
Which is updated more often, Bloons Card Storm or Underdark?
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