Well, you should always purchase your games. Y'know, to help the developers and discourage piracy?
Look at the amount of content on YouTube for games like the ones you have mentioned. While there may be a very rare case where there is a copyright strike this does not happen that often, you certainly should be able to upload and stream stuff.
Also, when posting on this forum, if members of the community (such as myself) are going to take our own time to answer your question, please take a bit of time to title it properly. A better title would be 'Advice on YouTube copyright strikes for games' or something like that. This also means that people on the internet looking for the same/a similar thing (maybe they have the same question) will be able to find it more easily on search engines.
I hope this helps.