Fort Battle Royale Unknown Battle 3D
A free program for Android, by Good Action Games.
This free game is set on a deserted island and lets you play as one of the last few survivors. As you fight to survive, you'll need to use all the weapons and equipment you can find to protect yourself from the other players. If you're lucky, you'll even find some hidden equipment and weapons as you fight. It's up to you how much you use and how effectively you fight.
You'll need to find weapons and equipment to protect yourself, so the best way to survive is to build a strong fort to defend yourself against the other players. The fort can be built using wood and other materials that are easily available on the island.