Tower Unite has hit 41K, and some updates have rolled around on the Indiegogo page.
At $40,000, the "Gemstones" idea was introduced. Gemstones will be unlocked every $1,000 they raise and will be a small surprise, for example, bumper cars (yes, if you didn't guess, bumper cars was the gem.) We don't know what the gem is until it's unlocked (I'm guessing they're voted on by the community.)
At $41,000, we unlocked the second gem, RC boats and planes.
And, in more personal news, I got permabanned from GMT servers. GG.