1. Open it and select "Play" to start a new game.

2. To merge crops, simply drag and drop them onto each other. You can merge crops of the same type to create higher-level crops.

3. As you merge crops, you will earn coins and experience points. The more you merge, the higher your level will be, and the more coins you will earn.

4. Use your coins to buy new crops and upgrades. The upgrades will allow you to merge crops faster and earn more coins.

5. Harvest your crops by tapping on them. Once they are harvested, you can sell them for coins or use them to make more advanced crops.

6. As you progress through the game, you will encounter new crops and challenges. For example, some crops may require special conditions, such as being planted next to water or a specific type of soil.

7. Keep merging and harvesting crops to earn coins and reach higher levels.

8. Try to create the most advanced crops and earn the highest scores to become the ultimate Merge Harvest master!