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By Subatomic Studios, LLC

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Experience the award winning tower defense game like never before thanks to full Retina display support! Stop the invading fieldrunners by creating mazes out of powerful weapons in this classic strategy game. Control the battlefield using limitless strategies and a diverse selection of upgradeable towers!


• Epic graphics update for full Retina support!
• All new soundtrack so you can defend in style!
• Glorious battles shine in 32-bits!
• More fun than ever!


• "Best Mobile Game Award!" 2009 IGF Mobile
• "Excellence in Art Award!" 2009 IGF Mobile
• #1 in “Top 10 Must Have Games” Gizmodo


• TIME Magazine - “Top 10 Video Games of 2008”
• PC Magazine - "Must-Have iPhone Games"
• EDGE Magazine - “Top 30 of 2008”
• Boston Herald - “#3 iPhone Game of 2008”


The invasion begins! Pint sized soldiers are storming your country - do you have what it takes to defeat them? Customize your strategic defenses using a wide selection of powerful weapons. Control the battlefield with a vast array of tactics against countless waves of unique land and air invaders! Countless hours of entertainment and replayable challenges! Enjoy a growing experience through DLC maps!

Do you have what it takes to stop the fieldrunners and rise to the top as the ultimate tower defense champion?


• Retina display support for gorgeous artwork!
• Addictive gameplay for hours of action!
• Over 400 waves across 4 unique battlefields!
• 7 devastating weapons for ultimate defenses!
• Stunning visuals in a hyper detailed world!
• Perfectly balanced challenges!
• Epic amounts of achievements!
• Challenge friends through OpenFeint!
• Full Game Center integration!


• Twitter: @Fieldrunners
• Facebook:
• Web:
• Forums:
• Email: info[at]


Everyone here at Subatomic Studios thanks you for playing our first game! Please rate Fieldrunners to show your support.

What's New in Version 1.6.2

• Removed outdated OpenFeint functionality!
• Adjust SFX and Music in System Settings!
• Fixed bugs generate more awesome!

iPhone Screenshot

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Customer Reviews

Great game- found bugs, though

Love this game and bought every add-on level. Fun strategy game.

However, lately I've been so bummed! I play this game a LOT... but I've been super frustrated with a few bugs in Mudslide. There are several times where I place a green glob tower thingy, and it doesn't trigger when the enemy is within range. Usually, it occurs when I place a tower near the bottom of the screen somewhere in the bottom three or four rows. It makes it difficult to beat it on Mudslide-- it is the only screen I can't seem to get to level 100 on, and that tower-not-working glitch happens waaay too often. Please fix mudslide!!

A suggestion.... please make it so I can hold my iPhone/iPad screen at any orientation. I prefer to hold it opposite the way it forces me to hold it b/c of my sitting position and place where my cords go. Just a feature I would prefer. :)

Love this game!! Hope you can fix these problems in an upcoming update.

Love It but please fix!

This game is hands down the best mobile tower defense game. I just have two simple gripes. First and foremost, PLEASE make it so I can have it in landscape in either orientation! I can't lay in bed and play it while charging because of the way it forces me to hold it! Second, it frequently crashes when I try to resume in Grasslands. I could have been playing for short periods of time for days, and that time gets wasted (more than it already was playing a game) when the game won't resume!!! It's literally killing, figuratively speaking of course ;)

Decent, but few maps without IAP & OMG the music!

I'm a big fan of tower defense. My favorites by far are PvZ and Creeps, closely followed by the Sentinel series.

Field runners is really basic. Only 3 maps & a few towers, in app purchases in a paid game, the game randomly closes for no reason at all on my 4s, and the music does not shut off - so you have to mute your phone and can't listen to anything else, either.

3 stars because it's a classic, but no more because of the annoying glitches and minimal content without additional purchase.

View In iTunes
  • $0.99
  • Category: Games
  • Updated:
  • Version: 1.6.2
  • Size: 47.4 MB
  • Language: English
  • Seller:
Rated 9+ for the following:
  • Infrequent/Mild Cartoon or Fantasy Violence

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. Skyway Map Expansion Pack$0.99
  2. Frostbite Map Expansion pack$0.99
  3. Mudslide!$0.99
  4. Lavaflow!$0.99

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