Updates to Power of Defense have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Power of Defense

• Balance renewed
• New levels with double bridges and traps
• Multiplayer improved
• Highscores improved
• GUI improved
• Localization improved
• Performance improved
• Bugfixes
• New Achievements

Source Updates to Power of Defense have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Power of Defense

• Balance renewed
• New levels with double bridges and traps
• Multiplayer improved
• Highscores improved
• GUI improved
• Localization improved
• Performance improved
• Bugfixes
• New Achievements

Source