Eternal Cannon Idle Shooting 4+

A Casual Tower Defense Game

CapPlay Interactive Inc.

Designed for iPad

    • 4.7 • 4.8K Ratings
    • Free
    • Offers In-App Purchases



Different from other idle games, in "Eternal Cannon" each upgrade is accompanied by a new skill, which means dozens of upgrade projects with their powerful skills!

What do you do when someone tries to irrupt your city?
Fight back! Constantly upgrade your cannon and walls, kill all enemies in front of you!

What should you do when the enemy is approaching the city?
The key to success is to make a perfect combination with upgrades and clicking, and use all your ingenuity to drive them crazy!

Game features:
• Over 60 special projects, Walls can be upgraded and cannon can be transformed!
Unbreakable walls - High defense and possible to make the damage reflected the attackers!
Invincible cannon - fast shot + double shot + sputter + crit + group bombing + deadly gas, how brutal it is!
• Fancy skills: frozen magic + full-screen bombs + heal the walls + rebirth with HP max, and ultimate skill called "invincible", instantly turned into enemy's nightmare!
• Real-time rank, competing with players around the world to see who is better on the battlefield!
• Changing background, Always pay attention and don't be confused by the cute appearance of the enemy! Remember every decision you make is a test for your strategy.

Any questions or feedback please send to
Ready? Let's get start!

What’s New

Version 1.7.8

optimize user experience

Ratings and Reviews

4.7 out of 5
4.8K Ratings

4.8K Ratings

Superclasher535 ,

Great game, but needs some tweaking

So I really like this game, and I’ve been having fun, but there are also 2 MAJOR problems the first one is that you don’t get enough prestige currency, which is red gems in this game. They even updated it to make it so you got more, and then I finally get to a new highest wave and check how many red gems I’m going to get, and it’s only like 30, I’m at wave 337, and I was getting consistently in the 100s when I wasn’t even at wave 200. The fact that you actually end up getting less and less red gems as you progress, ruins this game, and it needs to be fixed, AGAIN. The other problem is that every time I am offline I barely progress any waves, and I KNOW that I could have that I could have gone way more. Like seriously you’re going to tell me that I only went like 10 waves in an hour, when when I load up the game I go twice that much in 2 minutes. This means that to make any actual progress you need to have your phone on for a while. PLEASE DEVS IF YOU ARE READING THIS INCREASE THE NUMBER OF RED GEMS THAT YOU GET ,


I pre-ordered this amazing game a couple of months ago, and I do not regret it. After getting the notification of the game finally becoming available to play, I immediately launched it on my iPad. I really like this game because of how simple and enjoyable it is shocking enemies with lightning by tapping. I also really like how you can upgrade the rate of one's tap and the damage per tap. Overall, this game is a 5/5 and it can be played when one is on a road trip or is bored in general!

jehskdbfjemddnfbjeksndb ,

Need to fix some of the issues

The biggest issue is the Knock Back skill. When you get maxed out or even high level on this skill it pushes the enemies so far back that it completely renders the Splash attack useless. It gets really bad at higher wave levels when it pushes small enemies far back for up to a minute and you end up getting all of the enemies bunched up at your wall killing you. You can’t attack anything because the cannon is focused on the one enemy and it’s range is pushed way back that the splash isn’t even visible and can’t kill anything. Next time I prestige I’m not going to upgrade Knock Back very much at all because of this.

The next issue is that certain things like rare loot, cost discount and double cannon should be permanent and not reset when you prestige. They are so expensive and when you prestige it takes a long time before you can earn enough to even start to unlock them. Maybe you should make things cheaper when you prestige each time.

The ads weren’t working but you fixed that.

Developer Response ,

Thank you for your feedback, we have fixed the Knock Back skill in the latest version.

App Privacy

The developer, CapPlay Interactive Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Purchases
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

More By This Developer

Minimal Dungeon RPG: Awakening
Space Colonizers Idle Clicker
Idle Wildlife Incremental Zoo
Idle Convoy VS Zombies Inc
Click Chronicles Idle Hero
Space Colonizers - the Sandbox

You Might Also Like

Tower Ball: Idle Tower Defense
Crafting Idle Clicker
Grow Turret TD idle
Cookies TD: Idle Tower Defense
Scrap Clicker 2
Idle Wizard - A Fair Play Game