Single-player games like Mark of the Deep
Below are 21 single-player Steam games similar to Mark of the Deep, 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 Mark of the Deep page.
Ranked picks
- 1
Somber Echoes
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with Mark of the Deep.
Armed with God-given powers, the revived tribune Adrestia is given a second chance to save the universe from her maniacal twin sister. Find secrets, acquire upgrades, and dominate mighty foes through sheer combat prowess as you explore and conquer the horrors of the forsaken vessel Atromitos.
- 2
Lost Wish: In the desperate world
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Lost Wish: In the desperate world is a 2D side-scrolling platformer. Play as a young girl, explore different locations, defeat monsters, and find out what secrets this cruel world is hiding from you. Wonderful pixel art, a sad story, epic bosses and much more is waiting for you in the Lost Wish...
- 3
Vínculo
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Embark yourself on an adventure through the Marble Palace and uncover the plentiful secrets it hides! Explore magnificent views and fight through the hostile halls of the palace, all while making use of the innovative plane change mechanics!
- 4
Curse of the Dead Gods
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with Mark of the Deep.
You seek untold riches, eternal life, divine powers - it leads to this accursed temple, a seemingly-infinite labyrinth of bottomless pits, deadly traps, and monsters.
- 5
Blighted
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Battle through a psychedelic Western nightmare in this Metroidvania action RPG from the creators of Guacamelee! and Nobody Saves the World.
- 6
Aestik
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Make impactful decisions in moral dilemma situations, which will change the course of your journey through this atmospheric, hand-drawn metroidvania. Explore the hazardous paths of the Realm of Aestik and fight its corrupted inhabitants as you unravel its deep-rooted mysteries.
- 7
Solateria
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Solateria is a hand-drawn action Metroidvania with parry-focused combat. A small fire warrior journeys to find the Primordial Flame, the world’s last hope against the Shadow Plague. Defeat foes with stylish parries and explore mysterious realms to uncover the world’s secrets.
- 8
Dead Cells
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Dead Cells is a roguelite, metroidvania inspired, action-platformer. You'll explore a sprawling, ever-changing castle... assuming you’re able to fight your way past its keepers in 2D souls-lite combat. No checkpoints. Kill, die, learn, repeat.
- 9
TUNIC
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with Mark of the Deep.
Explore a land filled with lost legends, ancient powers, and ferocious monsters in TUNIC, an isometric action game about a small fox on a big adventure.
- 10
Subnautica
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Indie and Adventure with Mark of the Deep.
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
- 11
Hollow Knight
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Forge your own path in Hollow Knight! An epic action adventure through a vast ruined kingdom of insects and heroes. Explore twisting caverns, battle tainted creatures and befriend bizarre bugs, all in a classic, hand-drawn 2D style.
- 12
Hyper Light Drifter
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Explore a beautiful, vast and ruined world riddled with dangers and lost technologies.
- 13
Outer Wilds
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with Mark of the Deep.
Named Game of the Year 2019 by Giant Bomb, Polygon, Eurogamer, and The Guardian, Outer Wilds is a critically-acclaimed and award-winning open world mystery about a solar system trapped in an endless time loop.
- 14
Death's Door
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Reaping souls of the dead and punching a clock might get monotonous but it's honest work for a Crow. The job gets lively when your assigned soul is stolen and you must track down a desperate thief to a realm untouched by death - where creatures grow far past their expiry.
- 15
SIGNALIS
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
A classic survival horror experience set in a dystopian future where humanity has uncovered a dark secret. Unravel a cosmic mystery, escape terrifying creatures, and scavenge an off-world government facility as Elster, a technician Replika searching for her lost dreams.
- 16
Dandy Ace
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
Dandy Ace is an over the top action game that follows this fabulous magician seeking to combine and use his magical cards, fighting and looting his way to defeat the Green-Eyed Illusionist and free himself from a cursed mirror.
- 17
No Heroes Here
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
No Heroes Here is a frantic co-op game for 1 to 4 players, available in local and online modes. Craft and use several items effectively whilst coordinating your ragtag band of non-heroes to defend castles and survive! ...Oh, as well as saving the Kingdom in the meantime!
- 18
Monica e a Guarda dos Coelhos
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
MONICA E A GUARDA DOS COELHOS is a couch co-op game for 1 to 4 players. Playing as a group with heroes from the Brazilian IP Monica and Friends, everyone must play a role and defend the castles!
- 19
Latarnix Puzzle
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required.
Help the boar Latarnix as he passes through a variety of puzzles with obstacles to reach delicious golden apples at the end of each of the 50 levels in the game.
- 20
No Heroes Here 2
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Indie with Mark of the Deep.
A group of non-adventurers is the last hope in defending the castle in this chaotic co-op tower defense game with roguelike features. With up to 4 players, your party must organize the castle, work as a team to craft ammo, and shoot at enemies to protect your kingdom!
- 21
Super Tacky Astro Ranger - S.T.A.R.
Single-player alternative to Mark of the Deep — playable solo, no multiplayer required. Shares Action and Adventure with Mark of the Deep.
Play as the tackiest hero in the galaxy in this fast-paced 3D action roguelite. Battle through chaotic arenas, master various weapons, defeat the Morg Leader, and escape in style. Be bold, be reckless. Be a true S.T.A.R.