Google reCaptcha in Unity

I couldn't find anything related to this, but is there any form of Captcha system that can be integrated into unity engine?

 

almost certainly but you probably have to do so within a webview

honestly though, there is just no good reason to put that in a unity app
if its a webgl build the captcha would be easier to add on the website itself, either before launching the app or redirecting the user to a webpage to do whatever task requires a captcha
and for all other purposes, the process of downloading and running the app is confirmation enough that you are dealing with a human being. and i wager this is almost certainly true for a webgl app since navigating those isn‘t easily scriptable either.

 

we're having a problem with bots registering new accounts which is why a a captcha is needed.

 

It's actually possible that those "bots" (scripts) are human slave workers. There is a big market for that, specifically in Asia. However, with Autohotkey scripts one could easily script a click-sequence though.

To check which one you are dealing with, you could add a simple text entry field (and make it appear only randomly upon login). Something along the lines of:

"Confirm your humanitah:
How much is x (operator) y ?"
Like: 4+3 or 3*5.

And the user has to enter this math equation result in a text field.

It will take a scripter some time to implement a fully working script for this. And you could change or improve it by adding more random trivia questions everyone should know every once in a while.

Like "Which country's climate is coldest?" (Choices: Brazil, Australia, Alaska)