The above message is delivered by the Mac Operating System on all 32-bit Games and Apps. Apple is ending support for 32-bit apps in future operating systems (10.15 and above) and this warning is meant to inform users about the upcoming changes in macOS 10.15.
The current operating system, OS 10.14 Mojave, is not affected by these changes. All 32-bit games should continue to function as normal.
If you are experiencing issues with your game outside of this notification please reach out to our Support Team, so we can investigate.
In short, Keep Calm and Game On!