Add the Oreos to a food processor (remove the filling of the Oreos) and grind into fine crumbs.
Combine the Oreo crumbs with the melted butter.
Pour the mixture into the pie pan and press into an even layer on the bottom and up the sides.
Refrigerate it for 30 min.
Stir together coconut cream, coconut water, agar-agar powder, and sugar in a pot.
Bring to a boil over medium heat.
Keep stirring with a whisk until the sugar and agar-agar powder is dissolved.
Turn off the heat and add in lime juice.
Pour it over Oreo crust and place in the fridge for at least 1,5-2h.
Sprinkle with lime zest before serving.