: Static arrays have been replaced with dynamic ones, removing the previous 80,000-atom limit. Chemcraft can now render molecules of Molecular Dynamics Support

: If you have an existing license (typically valid for 8 years), you can enter your old key into the Update Registration Key tool to receive a new one for the latest version. Free License Option

8-year subscription of Chemcraft program with free updates: * Academic License (Windows) - 290 USD. * Commercial License (Windows) Order - Chemcraft

There are several ways to obtain a Chemcraft 18 registration key: