Cheatmachine PC provides the cheat codes & cheatsheets required to unleash hidden features of PC games and to complete them in an easier way with loads of fun. If your game is not mentioned in the list, use the "Search Online" feature. You can request games from the app to get them added in the upcoming updates. Features: Offline database of popular PC games.
It's safe to download PC Games' Cheatbook. Mayank Develops created this application that falls into the Entertainment category. According to the latest data, the app is rated 4.7 on Google Play.