# Core Concepts

### **Cookie Protocol:**

* Cookie introduces a novel approach to game theory, drawing inspiration from the legendary Cookie  game. Users engage with the protocol by depositing ETH, earning ETH yields, and acquiring boosting items to enhance their earnings.

### **Boosting Items:**

* Cookie offers boosting items, including `Ovens`, `Bakers`, `Bakeries` and `Cookie Farms` which users can purchase to augment their ETH yields. These items provide incremental increases in earnings, empowering users to optimize their return strategies.

### **Referral System:**

* The protocol features a referral system designed to encourage user engagement and community growth. Users who successfully refer others to Cookie receive a portion of the referred user's deposited ETH amount, fostering a network effect within the game.

### **Game theory:**

* Each player is free to create their own unique ROI strategy, by carefully deciding to deposit, claim and purchase Boosting Items situationally, while remaining true to Cookie's predefined rules.

### **Transparency and Immunity:**

* The Cookie protocol operates transparently, with its contract immutable and resistant to modifications. This ensures the integrity and fairness of the protocol, protecting users from external interference and maintaining trust within the ecosystem.
