Single-player games like Sea Warden
Below are 11 single-player Steam games similar to Sea Warden, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Sea Warden page.
Ranked picks
- 1
Breakwaters: Crystal Tides
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Indie with Sea Warden.
Survive in a world ravaged by massive Titans and an ever changing ocean sim. Displace water to find resources for building and crafting unique items. Swim, sail, and fly to explore new islands and fight Titans.
- 2
Under A New Sun
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Indie and Adventure with Sea Warden.
While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!
- 3
Project Castaway
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Adventure with Sea Warden.
Project Castaway is a survival crafting title set in the Pacific Ocean. Live the life of a stranded castaway, with only yourself - and the island's inhabitants - for company! Sail the ocean, hunt, explore unique islands and gather resources as you fight for survival.
- 4
Windrose
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Adventure with Sea Warden.
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!
- 5
ATLAS
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Adventure with Sea Warden.
Set sail for the ultimate pirate experience! Embark on a grand adventure alongside thousands of other players in one of the largest game worlds ever built (and even claim a piece of it to call your own). Build your ship, assemble your crew, sail the high seas, and become a pirate legend!
- 6
Stranded Deep
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Indie and Adventure with Sea Warden.
Take the role of a plane crash survivor stranded somewhere in the Pacific Ocean. Come face to face with some of the most life threatening scenarios that will result in a different experience each time you play. Scavenge. Discover. Survive.
- 7
Terraria
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Indie with Sea Warden.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 8
Valheim
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Action and Indie with Sea Warden.
A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!
- 9
Old Market Simulator
Single-player alternative to Sea Warden — playable solo, no multiplayer required.
Old Market Simulator is a 1-4 player co-op game where you manage your market by ordering goods, growing produce, raising animals, fishing, and crafting items in your workshop, while hiring employees and expanding your business.
- 10
Hidden Words
Single-player alternative to Sea Warden — playable solo, no multiplayer required. Shares Indie with Sea Warden.
Hidden Words is an interactive word guessing game that can be played with your Twitch chat! Your viewers will try to find the hidden words in a picture by just typing to your chat. There is also a solo game mode to challange yourself.
- 11
Old Market Simulator: Prologue
Single-player alternative to Sea Warden — playable solo, no multiplayer required.
Old Market Simulator Prologue is a coop bazaar adventure for 1-2 players. Dive into commerce, manage your reputation, and build your dream market together.