Dredge

From itch.io: Dredge is an exploration-based journaling game about sailing through an enormous lake known as the Wringwaste, hauling up mysterious items from its depths as you go, while struggling to regain the memories you've lost. Throughout the course of the game, you will unearth a plethora of odd items, evade a malevolent denizen of the deep, and reveal a great mystery about the Wringwaste itself. Dredge is written to be a solo experience, but the game can be played by multiple people taking on the role of the boat's cramped crew.