Game Guides - do you need permissions from the publishers?

Is there any way to get longer in this niche? I saw many apps with 2-3 years. How they avoid being suspended?

Game guides are fine as long as you don’t use any copyrighted images from the game or screenshots, if you notice walkthrough guides on gamefaqs.com or ign.com don’t have screenshots or anything samething goes for cheat guides, they are safe as long as you don’t use graphics or copyrighted works from the game, just make your own graphics that are related.

I had success on selling a game guide on eBay for runescape and made over $35,000 in 2 years selling a pdf guide I made.