There was a time when I was heavy into Point and Click Games,
not that I won't delve into them again sometime, here is an
excellent website I will dump on you that has many listed for you
 to play at your leisure, enjoy!
 
Point and Click Adventures
and another: (good fun using your head!)
M.O.T.A.S.

"A simulated space battle that pits computer-guided saucers
 against a rocketship that you control."
Imagine, You control it, BY YOURSELF!
Imagine how foreign a concept that would
be to someone who has never
seen, or even played a video game before!
This is, or that WAS, 1971
The game is Computer Space,
the very first arcade video game.
From the same website:
Video of Computer Space