Give you tips or hints in-game, for a price.
Describe Tips And Hints For Sale here... hmm... so you want a hint about what this trope is? You can get one if you pay 100 gold on it... Do you want to buy one? Good! The hint approaches now: In some games, things can get obscure, like some extremely rare Random Encounters in an RPG game where you Gotta Catch Them All. A 1% encounter are just as close as 0%. So how can you prevent a Guide Dang It moment by giving players these information, while holding Willing Suspension of Disbelief? Then why not give player hints for a price? This can be a smart move, not only as it prevents Guide Dang It, but you can let some in-game scientific characters, such as scientists, to give them as some sort of "archived research data" without dumping all on players for free at once. Why don't you just announce it to everyone, but have to explain it to every player singly? And you would think making some money by these data is very reasonable for scientists who has to earn a living. Note that this trope is a in-game gaming trope, which is not applicable to where you use real cash to buy out-game hints (like a Door Stopper walkthrough guide with every rate written), but using real cash for hints that were placed in-game still counts.
Video Game ExamplesRole-Playing Games
Non-Video Game ExamplesTabletop RPG