Tip Developer existed long ago, its sole purpose was to give him money. However some people mentioned that they actually got like 40 tank coins as reward, sadly I didn't. It was removed after the shop menu was newly formatted, I think, we already have the RIMs anyway.
so was the tip a fixed amount or was it like in restaurants...tip whatever you want to tip... and do u tip tank coins or money
? It was just a little thing in the store that let you dump your unwanted TC in to feel like you're helping.
Isn't that often specific to the site hosting the game? Like Kongregate has their own tip developer etc. Though you could always buy rims