Not good for broadening
Very addicting...
UPDATE:
ONLY very addicting in the beginning....
It soon gets to be repetitive scientific terminology. I found the game does not accept all true words, even very common ones.
Most words learned here are highly uncommon. Although it is nice to gain knowledge, the words arent beneficial to use in everyday language (unless youre a science buff).
It is wonderful if you want to learn metals, elements, ancient info and currency names of foreign countries.
Unfortunately after 500 stars I still havent learned more than four everyday words, and MANY scientific words.
Hello (^_^) about
Brain Games : Words & Numbers, v1.0