Raiders of the Lost Island is a LOCAL co-op party game where up to 4 players compete in looting treasures from a sinking island, while building a boat to survive the final wave (recommended for 2 or more players, friends and families). Find out more about it from UnleashTheGamer’s Interview.
Available in early access on Steam: https://store.steampowered.com/app/867980/Raiders_Of_The_Lost_Island/
Source: N4G PC Local CO-OP Indie "Raiders of the Lost Island" Launches in Early Access – Developer Interview