Here's a Game template with one of the most addictive casual game mechanics in mobile.
Check out the Android demo: Stack the Blocks apk

Need AR Mode as well?
Check out Stack the Blocks + AR Mode
(Also upgradable from this asset at 10 USD)

UPDATE v2.0 :
• ADs integrated
       - Interstitial, Banner and Rewarded Ad
        - Earn cash by watching Rewarded Ad
       - Continue Game by watching Rewarded Ad
• IAP integrated
       - Remove Ads permanently with IAP
• Custom Grid layout for the Shop
Read the documentation for setting up Ads and IAP. Back up recommended before updating.
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Features
• Complete game - Ready to Publish
• Easy to customize and reskin
• Gameplay: Precise block splitting, Automatic UV scaling and adjustment, Object pooling
• Aesthetic Design: Satisfying colors, Dynamic background
• Customizable Color palette
• Scoring and Cash system
• Shop: 9 default block skins, Easy addition of new skins
• Game progress saving
• ADs
       - Interstitial, Banner and Rewarded Ad
       - Earn cash by watching Rewarded Ad
       - Continue Game by watching Rewarded Ad
• IAP integrated
       - Remove Ads permanently with IAP
• Reusable components: UI Manager, Sound Manager, Shop, Data Saving, Object Pooling
• Commented code
• Detailed documentation
• Optimized for Mobile
• Store redirection for Rating

Documentation is a must read. Includes :
• Customization Guide
• Detailed explanation of Gameplay logic with diagrams
• Guide on reusing components.