Comparison

Defense Zone 3 HD vs OverclockeTD

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Defense Zone 3 HD

Defend your territory against relentless enemy armies in this action-strategy game. Strategically place and upgrade a variety of turrets, utilizing special abilities to overcome increasingly challenging waves. Enjoy dynamic battles with stunning visuals and flexible difficulty settings.

Highlights
  • Variety of turrets
  • Special abilities
  • Flexible difficulty levels
  • Diverse landscapes
  • Strategic placement and upgrades
  • Dynamic battles
Features
Read full description

Welcome to the long-awaited sequel to the popular action/strategy game! New weapons, landscapes, and options galore! Every game session is now even more dynamic and amazing. The core of the game is still the same: entire armies of enemies rush at your defenses, trying to destroy them by any means necessary. But now they’re even more powerful and madder than ever. You’ll have access to older, time-tested turrets, as well as completely new types of weapons. It’s up to you to decide how to spend your available budget. Should you build new towers or upgrade and fortify the ones you already have? Turrets vary in terms of their attack range, firing speed, and damage type. The only way to win is to combine them so that they complement and strengthen one another. The flexible difficulty settings will allow every player to get as much enjoyment out of the game as possible. If you’re an experienced commander, you’ll love the merciless, intense battles where the countdown where even a fraction of a second is vital to success and everything hinges on your ability to choose and arrange your turrets wisely. If you’re a new player, you’ll easily be able to train and prepare yourself for serious battles. Either way, the thoughtfully designed maps and wide range of available turrets will provide you with virtually endless tactical options. Thanks to the stunning, detailed landscapes, painstakingly drawn towers, and incredible special effect, you won’t be able to take your eyes off the screen. All aspects of the game have been meticulously balanced, including tower statistics, enemy strength, terrain characteristics, and special weapons. You’ll never get bored by too-easy gameplay. Every level will challenge you. Are you ready to accept the challenge? Features: • Four difficulty levels • Eight kinds of turrets • Eight special abilities, from Air Strikes to Nuclear Bombs • Varied seasons and types of landscapes • Support for over 60 languages

About

OverclockeTD

A synthwave-inspired tower defense game where you strategically place towers to eliminate enemies. Overclock your defenses for temporary boosts and protect your heart across multiple worlds and levels. Enjoy a free experience with optional additional content.

Highlights
  • Strategic tower placement
  • Overclocking for temporary power-ups
  • Synthwave 80s pixel art style
  • Multiple worlds and levels
  • Free to play with optional purchases
Features
Read full description

Build towers, protect your heart, overclock to be OP and enjoy the synth — in this 80s pixel synthwave inspired tower defense game. Strategically place towers to eliminate incoming enemy creeps. Overclock your towers to make them stronger for a short period of time, when you desperately need the extra firepower. Use the strengths of the different towers to your advantage to rise victorious! 7 worlds with a total of 33 levels await you for free and without ads! Get 3 more worlds with another 15 levels for a price of your choice! Can you defeat the enemies and protect your heart in all levels? OverclockeTD was selected as one of 16 'Favorite Swiss Made Games' on the App Store in Switzerland in August 2021.

Screenshots

Defense Zone 3 HD4 screens
OverclockeTD4 screens

Verdict

The call

The clearest difference is ads: OverclockeTD at none against Defense Zone 3 HD's shown. OverclockeTD also leads on review sentiment (80% vs 69%). Defense Zone 3 HD's advantage is ratings volume (2.5K vs 9). On price, rating, update cadence and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Defense Zone 3 HD sells 6 one-off in-app purchases and OverclockeTD sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Defense Zone 3 HD holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Defense Zone 3 HD has 2.5K ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 69% of Defense Zone 3 HD's written reviews are positive against 80% of OverclockeTD's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Defense Zone 3 HD ships an update every 3 months, OverclockeTD every 2 months. The most recent releases landed on September 23, 2026 and July 7, 2026 respectively.

Scorecard3 real differences · 7 level
Defense Zone 3 HD versus OverclockeTD: the parameters behind the verdict, then further details
ParameterDefense Zone 3 HDOverclockeTD
PriceFreeFree
Rating4.6 (2.5K ratings) — better4.4 (9 ratings)
Positive reviews68.5% of reviews80.0% of reviews — better
Number of ratings2.5K — better9
Update frequencyEvery 3 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size378 MB115 MB
Age rating12+9+
DeveloperArtem KotovJonas Krucher

Customer experience

Defense Zone 3 HD

All ratings2,523 ratings
Positive93.2%
Neutral2.7%
Negative4.1%
Written reviews375 reviews
Positive68.5%
Neutral9.9%
Negative21.6%

OverclockeTD

All ratings9 ratings
Positive88.9%
Neutral0.0%
Negative11.1%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Bugs and requests

Defense Zone 3 HD

Reported bugs

3 issues
  • Constant crashes
  • Inverted/flipped screen after ads
  • Inability to save progress

Requested features

3 requests
  • Endless mode
  • Better zoom and camera controls
  • More detailed weapon information

OverclockeTD

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Defense Zone 3 HD

One-time6
  • 3000 Coins$1.99
  • Remove Ads$2.99
  • 9000 Coins$4.99
Show 3 more
  • 20250 Coins$9.99
  • 56250 Coins$24.99
  • 262500 Coins$99.99
6 purchases

OverclockeTD

One-time6
  • Small Pledge$0.99
  • Premium: small amount$0.99
  • Medium Pledge$2.99
Show 3 more
  • Premium: medium amount$2.99
  • Big Pledge$4.99
  • Premium: big amount$4.99

Questions

Is Defense Zone 3 HD free?
Defense Zone 3 HD is free to download, with in-app purchases available.
Is OverclockeTD free?
OverclockeTD is free to download, with in-app purchases available.
Which has better reviews, Defense Zone 3 HD or OverclockeTD?
Defense Zone 3 HD is rated higher. Defense Zone 3 HD averages 4.6 out of 5 from 2.5K ratings, while OverclockeTD averages 4.4 from 9 ratings.
Do Defense Zone 3 HD or OverclockeTD have ads?
Defense Zone 3 HD shows ads; OverclockeTD does not.
Which is updated more often, Defense Zone 3 HD or OverclockeTD?
Defense Zone 3 HD ships an update every 3 months, and OverclockeTD every 2 months. Most recently, Defense Zone 3 HD was updated on September 23, 2026 and OverclockeTD on July 7, 2026.

Other comparisons