I currently have the Android version but want to play on my computer, do I need to purchase the game again?
You are correct. A separate purchase is required to play on Android vs. Desktop (Win/OSX/Linux).
One silver lining, however, is that the desktop version is regularly discounted at 75% off these days. It's usually not long until the next sale!
Dan Fedor - Founder, Blue Bottle Games
Much obliged to you for posting that it very well may be only what to offer motivation to somebody who needs it! Keep up the extraordinary work!
That's not perfect, sometimes I got caught and it's about luck. In those cases, cleaning wounds with whisky or tanning tea helps before using clean rags.