Hi Sandy,
That code looks OK and should add 10 to the score when the key becomes carried for the first time... which is correct!
Did you put the coding entry into Script 2?
I say this because it will not work in Responses - as they are only for entries that have "words conditions"...
Events without words conditions belong in Script 2 - which is called immediately after doing a Response entry.
Script 1 entries are similar but are only looked at when a location is described...
Please check your entry is in Script 2.
The "score+X" action is working normally.
Regards,
Phil.