Scroll down and click on the link for "Quartus II Software Version 13.0" or use the direct archive link: https://www.intel.com/content/www/us/en/software/programmable/previous-versions.html
If you are designing embedded processors using Nios II, you may encounter pathing errors on modern Windows environments.
Double-click QuartusSetupWeb-13.0.1.232-windows.exe . altera quartus ii 13.0 free download
Running a software suite from 2013 on modern operating systems can introduce specific compatibility challenges. Use these workarounds to ensure a stable environment: Windows 10 and Windows 11
If you downloaded separate .qdz device files, run them after the main installation. Ensure they target the same Quartus installation directory. Scroll down and click on the link for
Following Intel’s acquisition of Altera, the download infrastructure shifted. You should always avoid third-party torrent sites or unverified file-sharing blogs to protect your system from malware.
Navigate to the Intel FPGA Download Center archive page using your web browser. Step 2: Select the Edition and Version Use these workarounds to ensure a stable environment:
Quartus II Web Edition Design Software Version 13.0 ... - Altera