A free program for Android, by Алина Норина.

Raft Survival Ark Simulator is an addictive sandbox simulation game for Android. In this game, you are a survivor on the island and you will need to do everything in order to stay alive.

You can build your home to get shelter. Gather all the resources you can find on the island to protect yourself from dangerous creatures. 

Hunt different creatures for food, filter the water and gather plants in order to survive. You can also explore the island and unravel the mystery behind it.

Watch out for the vicious shark that will try to eat you alive! Craft weapons that will help you defeat the descendant of the megalodon shark.