they are older games but there must be a way using different versions of OS or another way,We need to know a bit more information before we can accurately answer that question:
What games are you trying to install? Include the version number if you know them.
What Mac are you using?
What version of macOS is installed?
If you aren't sure what Mac you have and what version of macOS is installed, go to the Apple menu in the upper left corner of the screen and choose "About This Mac." The next screen will show your macOS version and Mac model.
Newer versions of macOS do not support older 32-bit apps, which may be part of the issue.
There may be ways to install the games but we won't be able to tell you what might work without knowing the answer to the questions I asked.then there must be a way to install and play older games
they are older games but there must be a way using different versions of OS or another way,