Single-player games like Deep Sea Valentine
Below are 9 single-player Steam games similar to Deep Sea Valentine, 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 Deep Sea Valentine page.
Ranked picks
- 1

Arcadia Fallen
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Adventure with Deep Sea Valentine.
Play the role of a young alchemist apprentice who is unwillingly bound to an illegal spirit. Suddenly drawn into a war between humanity and magic, they must join a group of unlikely heroes to escape their own doom, hopefully saving the world along the way.
- 2

Love Craft
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Simulation with Deep Sea Valentine.
Join the Crafting Club, where the glue is strong and the feelings stronger! Craft chaos, flirt fearlessly, and make some very bad romantic decisions! Find your project partner in this elimination-based Dating Sim!
- 3

Arcadia Fallen II
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Adventure with Deep Sea Valentine.
In this sequel to the award-winning roleplay visual novel, Arcadia Fallen, you play as a senior student at the Seven Winds Academy. Choose from three different magical disciplines, and let your choices shape the personality of your character as you navigate school life during a time of great change.
- 4

Hiveswap Friendsim
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Adventure with Deep Sea Valentine.
You’ve crash landed on a dangerous alien planet with no food, medicine, or prospects, but you do know one thing—you are absolutely desperate for friendship.
- 5

The seven days i spent with you
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Adventure with Deep Sea Valentine.
With the enigmatic girl who imprisoned you――seven days in an unfamiliar room.
- 6

我的高冷女友 MY COLD GIRLFRIEND
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Adventure and RPG with Deep Sea Valentine.
What's It Like to Have a Girlfriend with a Hidden Side? 💙A romantic comedy visual novel set in a modern campus, where a dare leads to an unexpected relationship with a cold beauty—and a sweet, chaotic cohabitation begins.
- 7

Arcade Spirits
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie with Deep Sea Valentine.
Arcade Spirits is a romantic visual novel that follows an alternative timeline where the 1983 video game crash never occurred. It's 20XX and you've just started a new job at the Funplex game arcade. Who will you meet along the way? Will you find the romance you're seeking?
- 8

Slay the Princess — The Pristine Cut
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Adventure with Deep Sea Valentine.
You're here to slay the princess. Don't believe her lies.
- 9

spookY2K
Single-player alternative to Deep Sea Valentine — playable solo, no multiplayer required. Shares Indie and Casual with Deep Sea Valentine.
You wake up on a cold bathroom floor, only to discover that you somehow time travelled to a Halloween party in 1999! As you try to make sense of your situation and get closer to the other guests, will your clueless choices let the party take a deadly turn?