Detail this asset from Unity Asset Store: Original Link
This is a paid asset, but we’ll share Unlock It Free for you. Enjoy!!!
Unlock It v1.0
Easily add, unlock, combine & save items. Add scenes to your game where players can buy new items like cars and characters or build a 2d level manager. Automatically load selected items into your game scene and expand your in-game collections. With Unlock It, every item gets saved and you can give your players a new reason to keep playing.
Main Features:
– Add, unlock combine & save in-game objects and scenes
– Unlock scenes and items with in-game triggers
– Unlock items (or scenes) with coins
– Set opened scene for each item or use one default scene
– Optional progress label
– Use multiple item selection scenes
– Auto-disable scripts in the item selection scene
– Straight forward, customizable UI
– Easily add & save coins
– View and rotate 3D items
– Editor to make adding items simpler
Extras like warning & loading screens, optional item description, sounds, models and demo scenes
+ commented C# & PDF documentation
2D mode (for level managers) supports one image/level per page