A free app for Android, by Blockot Games.
In 21 Days Survival, the aim is to survive for as long as possible on the island. You will need to find food and shelter to survive.
Here, you can choose from a variety of characters to play.
The island is dangerous, and you will need to use your skills to find safe passage. The island has no boundaries, so you can travel as far as you like. However, if you see wild animals, you will need to fight for your life. If you are lucky, you will be able to escape.