Sunless Sea is described as 'Explore the dark and foreboding waters of Fallen London as captain of a steamship. Sunless Sea is an epic, roguelike game of discovery set in the Victorian Gothic universe of Fallen London and played from a real-time, top-down perspective' and is a Roguelike game in the games category. There are five games similar to Sunless Sea for a variety of platforms, including Windows, Steam, Mac, Xbox and Linux apps. The best Sunless Sea alternative is Subterrain. It's not free, so if you're looking for a free alternative, you could try Fallen London. Other Sunless Sea like games are Frozen State, Darkwood and The Flame in the Flood.
Subterrain is a roguelike, sci-fi survival game set in an underground city on Mars. Craft, research, explore and fight to survive the evolving mutant denizens.
Frozen State is an open-world survival game with roguelike elements. The game casts players into a man-made ice age where hunger, thirst and sleep present constant threats in an already dismal world.
Fallen London is a deep and compelling, though ever humorous, journey of interactive fiction set in the dark Victorian-Gothic underworld. It's played in classic, choose-your-own-adventure style where your choices determine how the story plays out.
Travel by foot and by raft down a procedurally-generated river as you scrounge for resources, craft tools, remedy afflictions, evade the vicious wildlife, and most importantly, stay ahead of the coming rains.
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