Combine elements. Discover history. Master the universe.
Trace the entire arc of
chemical discovery from water and stone to modern semiconductors.
LemChem is a growing collection of interactive chemistry projects created by Jessy M. Lemieux, Ph.D., a chemist and community college instructor. Built on a simple mission: to make the wonders of the physical world accessible, engaging, and genuinely enjoyable for everyone.
The flagship project, Ages of Chemistry, invites players to combine base elements and trace the entire arc of human chemical discovery—from primordial water and stone to modern semiconductors, learning while you play!
Science is fun! It's about time learning science was fun too.
Come talk about Ages of Chemistry, share your latest discoveries, suggest new elements for future updates, and provide crucial feedback.
Did you figure out the recipe for Wootz steel? Did you synthesize Aqua Regia before unlocking glass? Share your strategies and help new players navigate the tech tree. Report a bug or request a feature. Our community drives every update.
Join r/LemChemLemChem is a passion project built on evenings and weekends and offered for free so that anyone can experience the joy of chemistry.
Your generous donations go directly toward covering essential overhead, including server hosting, database maintenance, and domain fees.
As community support grows, any additional funding will be used to bring in specialists—such as audio engineers, graphic designers, and specialized developers—to elevate the quality of every project and bring even more ambitious educational games to life.
Donate on Ko-fi