[iancarroll]

It is important to note that trying to hide from OCR systems is not the right approach here. The text displayed in the game is coming from the network, and I highly doubt it's hard to MiTM from your own device.

The other mitigations are more reasonable.

[imgyuri]

What if the text was rendered as an image on the server, then sent to the device?

[PeterisP]

Trying to hide from OCR systems is futile anyway. OK, it might make the OCR implementation a bit more complex and less out-of-the-box, but with current technologies anything that's clearly readable will be clearly OCRable, and messing up OCR to a serious error rate would require you to totally hurt your human users by presenting everything in the worst CAPTCHA styles imaginable, where humans would often get confused as well.

[a_t48]

This is doable, but painful if you want to support more devices and slow network connections.

[felixschl]

Then you would capture that and do OCR on it