The Invisible Island

The Invisible Island is an island in the Bermuda Triangle.  It mysteriously appears when there are bad weather conditions, then disappears again. The Explorer (Player) becomes shipwrecked there and slowly discovers the secret of the island. The design for the Invisible Island took inspiration from mysterious disappearances in the Bermuda Triangle.

Aliens called the Valen originally came to the island promising the people that they would give them immortality. The humans believed every word they said to the point of building a Temple in honour of  them. However, the Valen actually wanted to experiment on the people and they end up being turned into mutants.

The explorer meets the Store Keeper, a member of the rebel alliance, and agrees to fight with three Valen commanders in the hope of turning everyone on the island backto normal.