Single-player games like Diabolical
Below are 22 single-player Steam games similar to Diabolical, 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 Diabolical page.
Ranked picks
- 1
Grand Academy for Future Villains
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Congratulations! We are delighted to welcome you to the Grand Academy for Future Villains, the world's finest evil preparatory school, where unimaginable power begins with a world-class education!
- 2
Fallen Hero: Rebirth
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
They called you a hero; you call them fools. Use your telepathy romance old friends and fight new enemies as you become the greatest villain Los Diablos has ever known!
- 3
Fallen Hero: Retribution
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
So you're a villain now? Let's see if you survive the experience.
- 4
Basements n' Basilisks: Storms of Sorcery
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares RPG with Diabolical.
A visual novel paying satirical homage to the world’s greatest TTRPG. Make important choices, roll countless dice, build lasting relationships, explore magical lands and experience all the rest of the crap you expect from a fantasy game without the hassle of finding actual friends to play with!
- 5
The Life and Suffering of Sir Brante
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie with Diabolical.
A narrative-driven hardcore RPG set in a gritty world ruled by real but unrelenting gods. Set out on a challenging lifetime journey, where every choice has a price and entails consequences. Will you become an inquisitor, a judge, or conspire against the old order? Dare to decide!
- 6
Roadwarden
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Roadwarden is an illustrated text-based RPG that uses isometric pixel art and combines mechanics borrowed from RPGs, Visual Novels, adventure games and interactive fiction.
- 7
Stronghold: A Hero's Fate
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Defend your stronghold from invading monsters and lead your people to glory! Rule your territory, punish your enemies, and build a legacy.
- 8
Signs of the Sojourner
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
In this narrative card game about relationships and communication, navigate conversations in a colorful world reminiscent of our own. Learn and grow through the cards you choose to play. Who will you become? What will you leave behind?
- 9
Monster Loves You!
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Live the life of a Monster, from birth to elderhood and beyond, making decisions that affect the world of Monsters and Humans. Solve problems. Meet animals and interesting people. Get to know them. Eat them. Make your own story!
- 10
Long Live The Queen
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Rule the world or die trying!Being a Princess is not an easy job. Being a Queen is even harder. Especially when you're only fourteen years old, and the reason you've inherited the throne is that your royal mother has just met an untimely end.Now power is up for grabs.
- 11
Choice of Robots
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Your robots will change the world! Will you show them the true meaning of love, or conquer Alaska with your robot army? A 300,000-word epic interactive sci-fi novel.
- 12
Tin Star
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Ride out into the Old West as a U.S. marshal in the biggest interactive novel ever made! Confront outlaws, find romance, defy the elements, and craft an enduring legend as you uncover a conspiracy whose deadly web stretches from San Francisco to New York City.
- 13
Zombie Exodus
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
It starts with a daring escape from a zombie-infested city; it ends at Zombie Exodus, when a horde of zombies swarms outlying settlements like locusts.
- 14
Zombie
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie with Diabolical.
You are surrounded by zombies. Unlike the zombies that are out to eat your brains. You can't stay awake forever.
- 15
Heroes Project
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Turn based strategy, tough choices, short and long term consequences.
- 16
Vampire: The Masquerade — Night Road
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
The elders have entrusted you, an elite vampire courier, to deliver their secrets. Can you outrun the hunters, the other drivers, and the rising sun?
- 17
Heroes Rise: The Prodigy
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Do you have what it takes to become a legendary Powered hero? "Heroes Rise" is an epic interactive novel where your choices control the story. The game is entirely text-based--without graphics or sound effects--and fueled by the vast, unstoppable power of your imagination. How high will you rise?
- 18
Choice of the Deathless
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Battle demons and undead attorneys, and win souls to pay back your student loans! At the elite demonic-law firm of Varkath Nebuchadnezzar Stone, you'll depose a fallen god, find romance, and maybe even make partner, if you don't lose your own soul first.
- 19
Vampire: The Masquerade — Parliament of Knives
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Dominate undead politics through cunning and violence! Will a missing Prince give you the opening to betray your sire and seize power?
- 20
Werewolf: The Apocalypse — The Book of Hungry Names
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Save the living earth with Rage and spirit! Can your shattered werewolf pack defeat a Wyrm Spirit that manifests as a lie that you want to believe?
- 21
Vampire: The Masquerade — Out for Blood
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
Gather your allies to hunt the vampires that terrorize your town! Study their ways and exploit their rivalries, or you'll become a vampire yourself.
- 22
Heroes Rise: The Hero Project
Single-player alternative to Diabolical — playable solo, no multiplayer required. Shares Indie and RPG with Diabolical.
The sequel to "Heroes Rise: The Prodigy." It's America's #1 reality show for heroes! As a contestant on "The Hero Project," you'll battle villains and heroes alike with your newly discovered "Infini" powers.