Users who report two or more significant bugs can receive a free registration key.
If the cost of ChemCraft is prohibitive, users are encouraged to utilize free and open-source alternatives that offer similar functionality: chemcraft 18 registration key top
"ChemCraft 18" likely refers to version 1.8 (or builds released around 2018), which is a common version still in circulation within academic circles. Users who report two or more significant bugs