Single-player games like Osteoblasts
Below are 15 single-player Steam games similar to Osteoblasts, 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 Osteoblasts page.
Ranked picks
- 1

Othercide
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie with Osteoblasts.
As Humanity’s last hope, lead your army to combat in an intricate dance of spectacular actions and counters, using an original Dynamic Timeline System, and face fearsome bosses in epic battles.
- 2

Crown Trick
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
Enter a labyrinth that moves as you move, where mastering the elements is key to defeating enemies and uncovering the mysteries of this underground world. With a new experience awaiting every time you enter the dungeon, let the power bestowed by the crown guide you in this challenging adventure!
- 3

Metaphor: ReFantazio
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares RPG with Osteoblasts.
After his assassination, the will of the late king decrees the next monarch to be elected by the people. Forge bonds and win over a kingdom divided in this award-winning fantasy RPG with turn-based and action combat, party customization with powerful Archetypes, and hours of exploration.
- 4

The Nameless: Slay Dragon
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
The Nameless: Slay Dragon is like a mix of CRPG and JRPG. In short - how to slay the immensely powerful and cunning evil dragon? You will play as a young man having a bloody feud with a dragon, and face powerful, sinister and tricky enemies with friends....
- 5

Virgo Versus The Zodiac
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
Dethrone the Zodiacs, revive the Golden Age and purge the Heretics that swarm the galaxy as Virgo, the queen of Purity, in this unforgiving timed actions turn-based JRPG.
- 6

Darkest Dungeon®
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
Darkest Dungeon is a challenging gothic roguelike turn-based RPG about the psychological stresses of adventuring. Recruit, train, and lead a team of flawed heroes against unimaginable horrors, stress, disease, and the ever-encroaching dark. Can you keep your heroes together when all hope is lost?
- 7

Crystal Project
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
Crystal Project is a non-linear JRPG where you are the maker of your own adventure. Explore the world while you find Crystals, unlock classes, learn abilities, and create a strategy capable of taking down the world's toughest bosses. Or just stick to exploring; it's up to you.
- 8

Fell Seal: Arbiter's Mark
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
Fell Seal: Arbiter's Mark is a turn-based tactical RPG with a focus on storytelling and strategic battles. Unfold a mature story as you progress through hand-crafted scenarios, controlling your own group of Arbiters, with each character customizable from a wide selection of classes and abilities!
- 9

OFF
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares RPG with Osteoblasts.
“I’m the Batter. I’ve been entrusted with a sacred mission.” -- One of the most influential RPGs of the last 20 years is finally coming to Steam. Take control of the Batter as he seeks to purify an uncanny and hopeless world haunted by specters, guided by a cryptic, grinning cat called The Judge.
- 10

NieR:Automata™
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares RPG with Osteoblasts.
NieR: Automata tells the story of androids 2B, 9S and A2 and their battle to reclaim the machine-driven dystopia overrun by powerful machines.
- 11

The Legend of Heroes: Trails of Cold Steel
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares RPG with Osteoblasts.
At Thors Military Academy, Erebonia’s best learn everything from the art of war to liberal arts. First year Rean Schwarzer learns he’s been selected to join the controversial Class VII, and they’ll need to deal with more than just class warfare--they’ll need to safeguard their country from chaos.
- 12

Keylocker | Turn Based Cyberpunk Action
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
In a silent world where music is outlawed, play as a singer to shatter the strings of fate and sing the melody of freedom in this unforgiving Turn Based Rhythm JRPG.
- 13

Shu's Misfortune
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares RPG with Osteoblasts.
This is a sample game created in "RPG Maker MZ" by Moonana, the creator of Virgo vs the Zodiac. As Shu end your father's haute couture legacy by unraveling his empire of fashion
- 14

Necromorphosis
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie with Osteoblasts.
In this unliving hell, become the bullet heaven. Gather the bones of fallen foes and morph into the ultimate skeleton to claim your throne of skulls as King of the Undead, if you can survive the Necromorphosis.
- 15

Ginger's Letter to Santa
Single-player alternative to Osteoblasts — playable solo, no multiplayer required. Shares Indie and RPG with Osteoblasts.
"This is it! This year I will cook the best roast Christmas dinner the Zodiacs has ever seen! They will all scream for more and then nobody will try to eat me, no more no more!" Join Ginger, Sullyvan and the Gonk on this RPG Christmas Adventure as they deliver their letters to Santa's Factory!