Ultimately this will be down to what device(s) you have access to, but there are some notable differences between each version of the game, so for those of you with the luxury of choice, we’ll point out what each version has (or even doesn’t have). That way you’ll know if a particular strategy isn’t applicable to the version you have.

**Feature** **iPhone/iPod Touch** **iPad** **Steam** **Android**
Field Guide No Yes Yes Yes
iPad Retina-Scale / HD Graphics No Yes Yes No
Extra Towers (Cannonball, Sonic Boom, Machinegun, Zap, Slow Link) Coming in next update (version 1.5) Yes Yes Yes
In App Purchases Yes Yes No Yes
Polymorph Tower Cost 15000 15000 4800 10000
Non-touchscreen controls / hotkeys No No Yes No
Free version Yes Yes No No
Director’s Commentary No Yes Yes No

Android Version Exclusive!

Exclusive to the Android version (for the moment at least), is the option to buy the towers you normally unlock by earning completing levels and their respective stars. Below you’ll find how many coins are needed to unlock these towers sooner.

**Tower Type** **Star Cost** **Coin Cost**
Oil Tower 7 Stars or 1200 Coins
Plasma Tower 9 Stars or 1500 Coins
Pyro Tower 14 Stars or 2000 Coins
Spark Tower 20 Stars or 2500 Coins
Railgun Tower 25 Stars or 3000 Coins
Mine Tower 36 Stars or 5000 Coins
Radiation Tower 48 Stars or 6000 Coins
Nuke Tower 70 Stars or 9000 Coins


User profile pic
Welcome Guest

Guide Information

  • Publisher
    Subatomic Studios LLC
  • Platforms,
  • Genre
  • Guide Release
    25 March 2013
  • Last Updated
    7 December 2020
  • Guide Author
    Andrew Mills

Share this free guide:

Inside this guide:

  • How to complete all 25 maps on Heroic difficulty with three stars.
  • The tricks to earning super high-scores!
  • Which levels are the best for earning those elusive gold coins!
  • Complete all survival maps without a single enemy getting out.
  • Each and every tower and item in the game - and how to get them.
  • Hidden Easter Eggs!
  • Exclusive map data - direct from Subatomic Studios!
  • Stunning HD screenshots.
  • All solutions can been watched in HD with audio commentary.

Get a Gamer Guides Premium account: