Island Survival Story is an action-packed role-playing game developed by Sponge Mobile. The game is set in the Bermuda Triangle, where survivors are lost and fighting to stay alive. It is an idle character collecting RPG with a survival theme. The game starts with a 4-star survivor and the goal is to build a sturdy base camp defense to fend off enemies and explore the island to rescue other survivors.

One of the main features of the game is to build an expedition team and a defense team. Players can rescue over 40 different survivors, train them, and fight alongside them. The game also allows players to use summoning to recruit various companions. The game's PVP mode is exciting, and players can compete against other users to find out who is the strongest. The game also supports idle play with an automated combat system, allowing players to enjoy idle RPG with automated combat and skill systems.

Overall, Island Survival Story is an exciting game that offers a unique experience to its players. The game is free and available on Android, making it accessible to a wider audience. If you are a fan of action-packed RPGs with a survival theme, this game is worth checking out.