JSim's Windows distribution runs on Windows 10, and Windows 7.

JSim version 2.17: 64 bit release. Going forward 32 bit versions are no longer supported.

1. Download the appropriate JSim zip archive. Providing the following information will help us demonstrate JSim's continued utility to the funding agencies upon which we rely. Filling out this form will not result in your addition to any mailing lists other than a JSim usage survey that is sent once a year. Your response to that survey will help us to retain our funding. If you wish to receive news about JSim on a more frequent basis, please contact us.

JSim is free for non-commercial use. View complete license terms