system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How it comes that such common words as "candy" and "saga" are allowed to be trademarked, just like King.com did?

Wouldn't it lead to absurds like copyrighting  more common phrases such as "the game"? Can I trademark something very common and then sue other companies for using it?
gpt
Trade marks can only be enforced when there is a reasonable chance of confusion.

"Candy saga" as a name doesn't really refer to anything but their games.

Them trademarking them allows them to sue companies that try to profit off their name through confusing customers, like a game called "Saga of Candy" which is just a poorly made clone.

You can't trademark "game" because tons of other things clearly already use that word.  They also can't sue a company that makes an RPG called "Saga of Time" or whatever, there's no confusion there.  They don't own the words, they just are staking a claim to that phrasing and it's been agreed that anything using those words in a too similar way is an effort to confuse customers.