

What you cannot see in the screenshots are the animations: The butterfly on the title screen flaps its wings, the stones gracefully move to their intended positions, there's a shooting star on the goodbye screen. As far as gameplay is concerned, Kalah goes by the classic Mancala rules, no extras.
I have not played it on an old computer yet, it played without problems on my 1100 MHz Duron, even recognizing the Windows mouse driver. The only thing missing was the music, about which I therefore can say nothing.