How do I make Survival games?

I know I'm asking for help on how to script a game BUT If you help me I will greatly thank you for your help.

Details of the game: There is many different islands/countries/continents, there is many animals and food, there is user shops, basically it goes from no civilization to futuristic worlds.

Thank you if you help.

Please help?!? Note: *Id prefer is you could teach me scripting though or at least told me what the stuff in the script meant. * Thx.

FYI: I'm a builder and sort of a graphic artist.