The multiplayer tower defense game Stratosphere has just been updated to version 2.0.

Released late last January, Stratosphere originally offered an objective-based single-player mode that lets you play against the game’s A.I. and a local multiplayer mode that lets you play against a friend in a tabletop match.

But now, thanks to its 2.0 update, Stratosphere also offers an online multiplayer mode. This enables you to compete against your Game Center friends across the globe and show your true mettle in the new online leaderboard.

Statosphere 2.0 also lets you unlock a brand new level, six new costumes, and a new design “featuring a parallax effect and live planet where you can influence the overall tide of war.”

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The newly updated game also includes the following improvements:

  • Learn more about all of the monsters and towers in the new almanac
  • Brand new main menu screen
  • Game Center Achievements
  • Balancing tweaks + Queen Skuttler and Eyebulb now resist stun and slow effects
  • New icon
  • Updated/improved special effects

Stratosphere 2.0 is available now in the App Store as a free update or as a new $1.99 download. The game is compatible with iPad running iOS 5.0 or later.

Note, though, that online multiplayer requires iOS 6.0 or later. But local multiplayer and single-player remain playable on iOS 5.0 or later.