Originally Posted by
Puntar
That is more like a dungeon guide than a journal.
Yes, many games do have "-pedias / journals / guides" built in games, but not in a fashion where it spoils "the fun and experience" out of the encounters anyway even before player get in there. To "unlock" the info of the beasts, mobs, their abilities and encounter type (if there is any) player NEED TO FIGHT MOBS FIRST!
Imagine yourself that in X-COM / UFO or any other respective solo RPG you get entire "journal" unlocked, with story spoilers, all the info of mobs and their abilities, including a final boss fight with a "rough sketch" of stages described.
WOULD ANYONE WANT TO PLAY SUCH A GAME?