suspect it’s spelling that’s the issue - “collectible” is the correct spelling, not quite sure what you mean about it being from the US or not - the word, the game, the language (though I hope that one doesn’t need explaining to anyone)
No either spelling is correct.
it’s okay, I’m not one to try and have a row - just looked like you were missing something - it still might be the spelling that prompted the post; I would not use “collectable” and am unsure about something I just read (even though it’s on the internet therefore true), that “collectable” is more English and “collectible” more American English