Idle Monster TD vs Merge Monster Evolution
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Idle Monster TD
Defend your monster homeland from invading robots in this unique tower defense game. Strategically deploy a variety of monsters with unique skills and elements to stop the mechanical onslaught. Upgrade your defenses and unlock new creatures as you progress through endless waves of enemies.
- Unlock 44 unique elemental monsters
- Strategic monster placement and synergy
- 8 diverse defense maps
- Bi-weekly PvP tournaments
- Countless upgrades and research options
- Offline gold earnings
- Endless gameplay
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Over 2 million players! Protect the... monsters? As the commander of the United Monsters Alliance, you’ll defend your homeland from menacing machines in Idle Monster TD. This delightful take on tower defense flips the script, putting you in charge of helpful creepy-crawlies trying to stop robot invaders from pummeling your base. Strategically place allies like Sea Stallion for extra-speedy attacks, or use Firefly for heavier damage. And if things get real dicey, just wipe the map clean with a firestorm spell! Eradicating bots gives you upgrades to bolster power, speed, and other stats - and the more bots you obliterate, the more monsters you’ll unlock. Idle Monster TD’s menagerie is filled with awesome beasts, like cute water sprites and scorching fire devils. Discovering new creatures is part of the fun. Like any loyal pal, Idle Monster TD takes care of itself when you’re away. Come back in a few days to claim gold and power up your defenses. Those robots don’t sleep—but neither do your monsters. Features: - Unlock 44 unique monsters of different elements (Water, Air, Earth, and Fire), all of which have different skill sets that make tower synergy crucial to success. - Strategize by placing up to 10 monsters at a time. Determining the most effective combination of their elemental skills and passive boosts will keep you entertained and speculating for weeks! - Play through 8 different maps, each requiring different strategies to defend most efficiently. - Bi-weekly PvP tournaments give this casual game a competitive edge. - Discover countless upgrades, research, spells, artifacts, relics, technology, and more to level up with a variety of different resources. - Several rewarding mini-games, such as Drone Swarms, Cargo Ships, and Tech Ships. - Non-stop, endless gameplay! - Fantasy RPG-based world and classes. - Complete tons of daily missions and achievements. - Offline gold earnings reward you while the game is closed! - Fun and cute pixel artwork. Idle Monster TD is a perfect blend of the Idle and Tower Defense genres. The game is endless and can mostly play itself without you watching. However, an immense amount of strategy is required to play efficiently and place well against your peers on the leaderboards. Go on an epic never-ending quest, explore a fantastic world, battle robots and monsters, and defeat epic bosses in Idle Monster TD!
Merge Monster Evolution
Summon and merge monsters to create an epic army with unique skills. Build a powerful squad to defeat challenging boss monsters and claim victory in this role-playing game.
- Summon Epic Monsters
- Merge Monsters to Evolve
- Collect 50+ Monsters
- Build Monster Squads
- Defeat Boss Monsters
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Claim victory by strengthening your monster army through merging - Summon Monsters! Use special Stones to summon Epic Monsters with rare, unique skills! - Merge Monsters! Merge monsters to form Epic Monsters! Monsters look cooler and gain power as they evolve! Collect about 50 kinds of powerful monsters. - Make your Monster Squad! Make your monster squad that gets stronger the more monsters you summon and merge! Defeat boss monsters with your powerful monster squad!
Screenshots
Verdict
Idle Monster TD and Merge Monster Evolution both sit at 4.7 stars, but that hides the real split: 75% of Merge Monster Evolution's written reviews are positive against 63% of Idle Monster TD's. On price, rating, ratings volume and update cadence 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. Idle Monster TD sells 10 one-off in-app purchases and Merge Monster Evolution sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Idle Monster TD against 4.6 for Merge Monster Evolution. Both are backed by a comparable volume of ratings — 2.6K and 1.8K respectively. Written reviews are what separate them: 63% of Idle Monster TD's written reviews are positive against 75% of Merge Monster Evolution's.
Idle Monster TD ships an update weekly, Merge Monster Evolution fortnightly. Both last shipped on November 3, 2026.
| Parameter | Idle Monster TD | Merge Monster Evolution |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (2.6K ratings) — better | 4.6 (1.8K ratings) |
| Positive reviews | 63.0% of reviews | 74.9% of reviews — better |
| Number of ratings | 2.6K — better | 1.8K |
| Update frequency | Weekly — better | Fortnightly |
| 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 | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 116 MB | 326 MB |
| Age rating | 9+ | 9+ |
| Developer | Swell Games LLC | Super Awesome Inc. |
Customer experience
Idle Monster TD
Merge Monster Evolution
User reviews
Idle Monster TD
From 2.6K App Store ratingsWhat we love
- 🚀 Great game
- 👍 Addictive gameplay
- 🎨 Cute art style
- 💰 Free-to-play friendly
- 🔍 Lots of content and progression
Room to improve
- 💰 Expensive in-app purchases
- 🐢 Slow progression at higher levels
- 🔋 Requires constant screen time
- 🐛 Crashes and bugs
- 🤔 Lack of offline progression
Merge Monster Evolution
From 1.8K App Store ratingsWhat we love
- ⭐️ Addictive and fun gameplay
- 👍 Unique monster designs
- 🚀 Smooth performance
- 💎 Rewarding progression system
Room to improve
- 🐛 Bugs and crashes
- 💰 Excessive in-app purchases
- 📺 Too many ads
- 🔒 Issues with purchased content
Bugs and requests
Idle Monster TD
Reported bugs
5 issues- Leaderboards not loading
- Prestige feature not working as expected
- Targeting issues with towers
- Inconsistent ad rewards
- Essence and currency display issues
Requested features
5 requests- Add more monsters and towers
- Implement offline progression
- Improve speed options and controls
- Add more communication features (clans, chat, etc.)
- Optimize for larger screens (iPad, iPhone X/11)
Merge Monster Evolution
Reported bugs
4 issues- Purchased VIP features not working
- Deleted rare monsters cannot be recovered
- Frequent loading issues and freezes
- Inconsistent ad rewards
Requested features
4 requests- Add more levels and content
- Improve the battle system
- Introduce multiplayer or social features
- Allow for more customization options
In-app purchases
Idle Monster TD
- Offline Gold Perk$4.99
- Tournament Boost$4.99
- Gems Pack 1$4.99
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- Ads Bundle$7.99
- Starter Pack$7.99
- Game Speed x2$9.99
- Gems Pack 2$9.99
- Slayer Bundle$17.99
- Gems Pack 3$19.99
- Pro Pack$19.99
Merge Monster Evolution
- Gems$0.99
- Limited Package$4.99
- Red Summon Stones$4.99
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- Gem Pocket$9.99
- VIP Package 1$9.99
- Red Summon Stone Pocket$9.99
- VIP Package 2$19.99
- Growth Support Package$29.99
- Gem Box$49.99
- Red Summon Stone Box$49.99
Questions
Is Idle Monster TD free?
Is Merge Monster Evolution free?
Which has better reviews, Idle Monster TD or Merge Monster Evolution?
Do Idle Monster TD or Merge Monster Evolution have ads?
Which is updated more often, Idle Monster TD or Merge Monster Evolution?
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