Single-player games like Castaway of the Ardusta Sea
Below are 10 single-player Steam games similar to Castaway of the Ardusta Sea, 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 Castaway of the Ardusta Sea page.
Ranked picks
- 1
Samurai Vandalism
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Action and Indie with Castaway of the Ardusta Sea.
The land of Yamato is filled with cruel rebels, oppressive nobles, and dangerous monsters. Fight as a Hozuki samurai to bring justice to the land!
- 2
Sylphy and the Sleepless Island
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Action and Indie with Castaway of the Ardusta Sea.
One day, professional thief Sylphy learns of the mystical and valuable artifact of the Kingdom of Diezel, but the mission goes sideways and she ends up robbing the island of its night! She has one week to right her wrongs in this action-filled RPG!
- 3
Demons Roots
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Castaway of the Ardusta Sea.
In a final struggle for survival, demonkind again invaded the human world. However, the world they return to after years in the darkness isn't the same as it once was...
- 4
Treasure Hunter Claire
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Castaway of the Ardusta Sea.
Treasure Hunter Claire is the story of the titular protagonist, Claire, and her adventure through the fabled land of Alstroemeria. What treasures and riches await her as she navigates the world?
- 5
Fallen ~Makina and the City of Ruins~
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Castaway of the Ardusta Sea.
Fallen takes you on an adventure with Makina into the Ruins of Gardona. What fate awaits Makina and her friends on their travels as they descend further into the ruins? Find out in this JRPG classic!
- 6
Pray Game
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and Adventure with Castaway of the Ardusta Sea.
Washed away to the island of Anatol, Alcy now must embark on a journey to escape the island and find her way to safety.
- 7
Evening Starter
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Action and Indie with Castaway of the Ardusta Sea.
A classic dungeon crawler RPG. When Ren Nosogi gets caught up in an incident that puts her in massive debt, she must use her skills as a Sweeper to take down an evil cult in order to pay it off.
- 8
Ruins Seeker
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and RPG with Castaway of the Ardusta Sea.
An adventurer named Quem is the first person to step foot inside "Heaven's Ladder" in 500 years. But not long after, she's cursed by a strange, shadowy monster. Now she must reach the top of Heaven's Ladder, and hopefully, break the spell.
- 9
Escape from Fortress Lugohm
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Indie and RPG with Castaway of the Ardusta Sea.
Aisha was on her way home after having completed a mission for the guild. But on her way back, she was caught by the infamous Count Lugohm. Will she be able to escape from the clutches of Count Lugohm? Find out in this Stealth Survival RPG!
- 10
Mage of the Olekta Desert
Single-player alternative to Castaway of the Ardusta Sea — playable solo, no multiplayer required. Shares Action and Indie with Castaway of the Ardusta Sea.
Aisha takes on a mission to deliver a letter to a mage living in the Olekta Desert. To her dismay, she must traverse the dangerous ruins and defeat the bandits and cultists that roam inside... or somehow get through unnoticed.