Hi kate me, you got fed up with island themed games huh?
Well sence you really helped me, I'll tell you some of the mayan/aztec games that haven't been mentioned (and I really hope you don't know about them already)
TerraX - Blood of Aztecs
The crystal skull
and
Echo: Secrets of the Lost Cavern which is not really mayan or aztec but is set in prehistoric stone age in famouse Lascaux cave in France.
I Hope, I was helpful,
Dalilah