Create a Quartus Project
Create a new Quartus project (Quartus version used 7.2)
Open project wizard
Select File -> New Project Wizard
Pass the Introduction screen
Just click the Next button
Select the project folder, and project name
1. Select a folder for the project
2. Enter a name for the project
3. Click the Next button
Add existing files to the project
If no files are to be added at this step, just click next
Select the target FPGA chip
For Altera DE2:
1. Select the Cyclone II family,
2. Pick the EP2C35F672C6 device, and click Next
Select third-party EDA tools
One can select here, for example, a different simulation environment such as Modelsim.
Click Next afterwards.
Final step
Just click the Finish button
Start building the Project
Note: The topmost Quartus entity must have the same named as the project!