I found this game interesting: https://apps.qoo-app.com/en/app/29159
The games gives so much for F2P players! I have only spent the initial purchase w/c they will provide Genie and no other purchases made because of the resources they provide! Love this game! Hoping for more characters to come out in the future! The design, gameplay is on point and being able to semi-afk other functions on the game aswell is beyond from any other afk games i have tried! 

apps.qoo-app.com [Download] Tales of Grimm - QooApp Game Store APK Size: 595.92 MB. Welcome to the enchanting realm of "Tales & Dragons: New Journey"! In this captivating free, open-world fairy tale idle RPG, you'll embark on a highly engaging adventure. Whether you're in the office or out and about, you can effortlessly enjoy the excitement of an RPG and experience the unique charm of idle mechanics. In this magical adventure of fairy tales and dragons, you are the chosen Dreamer by destiny. Join forces with your fairy tale Heroes and embark...