After I completed quest 72 I can't see the next ones.

Hello, i recommend you to add different ways to sythetize reactions For example quest with production FeCl3 from Fe2O3. I want to make double exchange with Fe2O3 and HCl and I recognised that reaction is not possible.. BTW I respect you with all my heart, because one thing which i needed in my life was a game based on chemistry. Very good job man, really....

I really like the game, but finding the last reactions is completely awful. There is no way to determine what is actually left, and the only thing I can think of is to get multiple copies of each molecule in one play area, which leads to the game lagging really badly, and the "calculating reactions" takes a long time, which compounds when you're trying to get 100 more reactions. There needs to be some way to decipher what is left. I would like to see some kind of feedback (such as marking what molecule...

I wish there were animations to display in 3D the orbitals and it would be nice to add animations too to show how electrons behave during the chemical reactions instead of showing only the reactants and the products. Great concept, but this is only recap, nothing new really to learn here....

Finally something really interesting and educational will appear on steam. I look forward to it.