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

Clinical Trial
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Prologue version of the game BioGun.Get injected into the microscopic world. Face viral threats and winding corridors on your mission to save man’s best friend from the inside. Will you be the vaccine to save dog-kind from extinction?
- 2

The Knight Witch
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
The Knight Witch is a metroidvania adventure game with fast-paced, shoot 'em up combat set in a beautifully hand-drawn world. Cast devastating card-based spells, forge close bonds, and make moral choices all in your quest to save your home and discover who's behind the War Golem invasion.
- 3

Crypt Custodian
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Adventure with BioGun.
Crypt Custodian is a charming metroidvania about cleaning up the afterlife. Play as Pluto - a mischievous cat who has died, and is sentenced to be the afterworld's janitor... FOREVER! Hang out with other doomed ghosts, battle beasts, and explore a vastly expansive landscape.
- 4

Super Roboy
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Delve into the world of Super Roboy, a hand-drawn Metroidvania in a post-apocalyptic setting! Learn enemy skills, explore an interconnected world, battle mutants and robots, and uncover the emotional story of a young robot searching for his father.
- 5

BIOMORPH
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Adventure with BioGun.
BIOMORPH is a dark metroidvania game where you become the creatures that you kill! Solve ingenious puzzles and navigate a stunning hand-drawn world. Meet quirky characters, rebuild a city, and uncover the secrets of a sprawling, fallen civilization… and of your own mysterious origins.
- 6

Pipistrello and the Cursed Yoyo
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Are you ready for the first Yoyovania?! In this 2D top-down adventure you'll explore a sprawling urban landscape, reinterpreting your surroundings through your mastery of yoyo tricks. Navigate the city's many districts, fight rival crime bosses, and regain the influence of the Pipistrello family!
- 7

Warhammer 40,000: Shootas, Blood & Teef
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Adventure with BioGun.
From the developers of the Guns, Gore and Cannoli franchise comes a new 2D run & gun platformer: Warhammer 40,000: Shootas, Blood & TEEF! Spearhead an Ork invasion, destroy the hive city and kill your warboss! ‘Ere we go!
- 8

The Mobius Machine
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Discover a vast alien world. Fight the ferocious local fauna and killer machines. Reveal its secrets and find a way to escape. The Mobius Machine is a side-scroller action adventure, with an emphasis on free-form exploration and intense combat.
- 9

Prince of Persia The Lost Crown
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Adventure with BioGun.
Dash into a stylish and thrilling action-adventure platformer set in a mythological Persian world where the boundaries of time and space are yours to manipulate.
- 10

Hollow Knight
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
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.
- 11

Ori and the Blind Forest
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action with BioGun.
“Ori and the Blind Forest” tells the tale of a young orphan destined for heroics, through a visually stunning action-platformer crafted by Moon Studios for PC.
- 12

Pronty
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Guide Pronty and its Javelin partner Bront as it defends the once great city of Royla. Explore the deep sea, fight mutant sea creatures, and discover the secrets behind this new Atlantis in this beautiful action-packed adventure.
- 13

Laika: Aged Through Blood
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Adventure with BioGun.
Laika: Aged Through Blood is an action-adventure Metroidvania set in a post-apocalyptic western world. Play as Laika, a coyote mother and fierce warrior, and carve your motorbike through a land ravaged by betrayal and loss as you uncover dark secrets in the pursuit of vengeance against oppression.
- 14

Hollow Knight: Silksong
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Discover a vast, haunted kingdom in Hollow Knight: Silksong! Explore, fight and survive as you ascend to the peak of a land ruled by silk and song.
- 15

TurnBreak
Single-player alternative to BioGun — playable solo, no multiplayer required. Shares Action and Indie with BioGun.
Bend the rules. Break your opponents. Outsmart the League before it crushes you. Forge unstoppable teams of evolving Beasts, then exploit elemental weaknesses to chain devastating plays. Every battle is a high-stakes mind game. Will you rise through the ranks or be broken in the attempt?