Single-player games like The Caligula Effect: Overdose
Below are 16 single-player Steam games similar to The Caligula Effect: Overdose, 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 The Caligula Effect: Overdose page.
Ranked picks
- 1

The Caligula Effect 2
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Redo is a world without sorrow created by the virtuadoll Regret. Virtuadoll songs give Redo residents respite from their struggles. Our protagonists discover the truth and form the Go-Home Club to return to reality. Make your way home with companions bearing heavy burdens in this school-themed RPG.
- 2

Death end re;Quest
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Death end re;Quest takes the classic turn-based RPG and flips it upside-down. Switch between the RPG action of the game world and the visual novel segments of the real world. In the realm of game development, it may seem all fun and games until the lines between fantasy and reality begin to blur.
- 3

RESONANCE OF FATE™/END OF ETERNITY™ 4K/HD EDITION
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
This symphonic gunplay RPG, where you can change the fate of the world, has been remastered in a 4K/HD EDITION. Fly through the air and enjoy the blazing gun battles in this fateful tale set on a ruined planet.
- 4

Persona 5 Royal
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Don the mask and join the Phantom Thieves of Hearts as they stage grand heists, infiltrate the minds of the corrupt, and make them change their ways!
- 5

Atelier Ryza: Ever Darkness & the Secret Hideout
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
The concept of this title, the latest in the series to depict a new "Atelier" world, is "True-to-life youths that develop together, even if just a little bit".
- 6

Shin Megami Tensei V: Vengeance
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Become a mighty demigod and battle through a decimated Tokyo in a war between angels and demons. Make new allies along your journey, engage in intense, turn-based combat, recruit hundreds of demons and forge your own path to dictate the fate of all existence.
- 7

The Legend of Heroes: Trails in the Sky
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Hailed as one of the largest, longest and most meticulously detailed turn-based JRPG series of all time, this first chapter in the ongoing Trails saga sets the stage for what's quickly become Ys developer Nihon Falcom's most popular and best-selling franchise in their entire 30+ year history.
- 8

CRYSTAR
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
For when I weep, then I am strong. Battle through Purgatory as Rei to help save her sister in this Action RPG. Switch freely between four playable characters, and uncover each one of their pasts to see the sorrows they have endured.
- 9

Transistor
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Discover the world of Transistor, a sci-fi-themed action RPG from the creators of Bastion.
- 10

Persona 4 Golden
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
A coming of age story that sets the protagonist and his friends on a journey kickstarted by a chain of serial murders.
- 11

Cardfight!! Vanguard Dear Days
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required.
The ultimate digital Vanguard experience that includes an original story set in the world of overDress! Compete with players worldwide with "Ranked Fight," play solo casually with "CPU Fight," and enjoy the game and experience the world of Vanguard at your own pace via many other fight modes.
- 12

CRYMACHINA
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required.
CRYMACHINA is an action RPG where mechanical girls strive to survive in a post-apocalyptic world to become “Real Humans''. But what does it mean to be a “Real Human”?
- 13

Cardfight!! Vanguard Dear Days 2
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
"Cardfight!! Vanguard," has newly come to digital game! Over 3,000 cards for the Standard format! A brand-new original story shares the world of anime series unfolds! Enjoy your own cardfight experience!!
- 14

The Alliance Alive HD Remastered
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Rise up and ignite the resistance in The Alliance Alive HD Remastered! Explore diverse realms, awaken new skills mid-battle, and forge alliances to challenge the Daemons that have taken over the world!
- 15

Lost Dimension
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
In the near future a terrorist mastermind, known only as ‘The End’, threatens humanity with nuclear armageddon. A special task force, the S.E.A.L.E.D team, are the only ones who can stop him: a group of young combatants with incredible abilities and each with a mysterious past.
- 16

MONARK
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Could you face yourself and the threats around you to save the ones you love? Shin Mikado Academy is engulfed in a madness-inducing Mist, and only you can save everyone inside. Develop your Ego to break the pacts set by the Pactbearers and remove the corrupting Mist.