Once you get the sprinkler, go to the top of the screen and click repeatedly, not holding down. It will draw all the creatures to you and allow your grass to heal while draining your torque a lot more slowly.
Awesome game! Contrary to what many are saying, I actually really like that the dragon can only be beaten with a divine edge. Without that there would be absolutely no challenge once all upgrades have been purchased.
First of all thanks for playing Spectromancer: Truth & Beauty
Though I have fixed it before you comment came into existence. Many people got the badge after that update. Now I have re-updated the version with one more early call for badge. If you still did not get the badge, please re-open the game and try to load it, you will get it immediately. If there is still an issue, I am sorry to say that you need to replay the campaign (May be because your game save file is not at proper place).
This game is awesome! I love the speed and intensity. It would be great if level ups happened mid-level though. It's frustrating to beat the objectives for the current level and have to suicide in order to get a new mission.
Thanks for the comments, I'll add in some options for faster play tomorrow ;)