Here’s a couple of examples Keep talking and nobody explodes — The most popular in the list I think
Uncle Chop’s rocket shop — the game where you are repairing your client’s rockets by following the in-game guidebook
Tin can — here you are also repairing the spaceshp but this time you are it’s capitan and you are in space in the middle of nowhere
Not quite as strictly as what you’ve cited, but some of the older Sierra point-and-clicks relied on maps/pamphlets/etc that were packed in with the game. Most just used them as low-budget and thematically in-universe anti-piracy gating (the Dagger of Amon Ra), but some stretched beyond that. Conquests of the Longbow: the Legend of Robin Hood had royal family crests, language keys, and (of I remember correctly) a catalog of gems that were all perused outside of the game interface.
GOG has PDFs of all those documents if you buy the games there, so you can still experience it fully. Might be worth checking out, since it’s usually less than $5.