An excellent resource for Virtual Labs and simulations that mimic the interactive feel of VSCM.

The American Chemical Society provides free remote learning assignments including videos and interactive questions. Final Thoughts

Master Chemistry at Home: A Guide to the Virtual School of Cyril and Methodius

If you can't find the specific Cyril and Methodius version you need, several modern (and often free) platforms offer similar high-quality chemistry lessons:

Offers a massive Chemistry Archive with video tutorials and practice problems for all levels.

While the series was originally released on physical CD-ROMs, many modern learners search for ways to to use on newer laptops without disc drives.