Co-op games like Arcane Waters
Below are 5 cooperative Steam games similar to Arcane Waters, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Arcane Waters page.
Ranked picks
- 1

Uncharted Ocean 2
Online Co-op alternative to Arcane Waters — playable with friends. Shares Adventure and Massively Multiplayer with Arcane Waters.
Time to set sail! This is destined to be a journey full of opportunities. Open new trade routes, accumulate fortunes, and establish a maritime empire of your own! It is also a dangerous journey, you must defeat the evil pirates and other mystical dangers the ocean offers to a captain.
- 2

World of Sea Battle
Online Co-op alternative to Arcane Waters — playable with friends. Shares Action and Massively Multiplayer with Arcane Waters.
Set sail in World of Sea Battle, an action-packed open-world MMO in the Golden Age of Sail! Command historic ships, battle in PvP & PvE, shape the economy, and engage in territorial guild wars in your quest for glory across the high seas!
- 3

Maelstrom
Online Co-op alternative to Arcane Waters — playable with friends. Shares Action and Indie with Arcane Waters.
Command the seas in Maelstrom! Engage in fast-paced naval battles with powerful warships and colossal sea monsters. Customize your fleet and dominate the Abyssal Ocean. Are you ruthless enough to survive?
- 4

Age of Water
Online Co-op alternative to Arcane Waters — playable with friends. Shares Action and Adventure with Arcane Waters.
Age of Water is an online adventure game set on a post-apocalyptic Earth completely covered in water. Sail through storms, fight and trade, capture other people's boats or build your own, extract resources from the bottom of the ocean and reveal the secrets of the Age of Water world.
- 5

Windrose
Online Co-op alternative to Arcane Waters — playable with friends. Shares Action and Adventure with Arcane Waters.
Embark on a PvE survival adventure in the Age of Piracy. Fight on land and sea, solo or with friends. Build, craft and explore vast open world filled with dark secrets. Master soulslite combat and take on challenging bosses, command your ship and plunder unspoken treasures!