Yes, you can incorporate fair use principles into your game as long as you follow copyright laws and guidelines.
All members of the World Trade Organization are required to recognize other members' copyright laws. They must also base their laws on the Berne Convention, Article 10 of which describes uses that may be "fair practice." So, if you correctly apply the fair use or fair practice doctrine, nothing happens. Unfortunately, no one has created a definition of fair use that is widely accepted in its entirety. So there is always the possibility that someone will cry foul and take you to court.
Fair use is LEGAL. But it's an American law so not legal elsewhere, though some countries have similar laws.
Yes, that is one of the intentions of 17USC107.
Fair use or fair dealing provisions allow certain limited unlicensed uses.
Copyright laws apply to digital materials in the same way they apply to physical materials. To qualify as fair, the use of images must satisfy the "four factors:"the purpose and character of your usethe nature of the copyrighted workthe amount and substantiality of the portion taken, andthe effect of the use upon the potential market.
All cited images in (or on) this (what ever you need it for) are used under the Fair Use Interpretation of Copywrite Laws. All others are used by permission.
A court system
Fair use is a small part of copyright law that allows certain unlicensed uses of protected works. If you use protected works, without a license, in a manner not addressed by the fair use clause (in other words, if your use is not fair), your use would be infringing. Copyright infringement is punishable by fines ranging from $750 to $30,000.
Safety mostly.
Cookbook publishers are affected by the same laws that apply to other books. copyright laws, trademark laws, and contract laws. Other issues are laws concerning fair use of recipes and photographs.
you use a fair test when you are doing one at school for you topic research programme.