Single-player games like The Caligula Effect: Overdose
Below are 19 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
Atelier Sophie 2: The Alchemist of the Mysterious Dream
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
A mysterious story of a mysterious dream ... This is a story about one of the adventures Sophie the Alchemist had after she left her hometown of Kirchen Bell.
- 2
The Legend of Heroes: Trails of Cold Steel III
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Experience an epic story developed across three titles, and crafted for new and old fans alike. Also includes an interactive introduction to catch up new players to the ongoing story so anyone can dive right in to the world of Trails of Cold Steel.
- 3
Atelier Sophie: The Alchemist of the Mysterious Book
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
17th in the Atelier series. The budding alchemist Sophie of Kirchen Bell meets the Mysterious Book, Plachta, and embarks on a wonderful adventure of fulfilling dreams.
- 4
The Legend of Heroes: Trails of Cold Steel II
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
Civil war has broken out across Erebonia. After his narrow escape from Trista, Rean will take up his sword again on a journey with his Divine Knight, Valimar, in search of his friends from Class VII and a way to end the conflict before its price becomes far too dear...
- 5
Death end re;Quest 2
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
In collaboration with Corpse Party scenario writer Makoto Kedouin, this horror RPG follows Mai Toyama’s search for her sister in a quiet lakeside town. She’ll unravel clues to the town’s past by day, and battle Shadow Matter by night. Can you uncover the truth before reality is consumed by darkness?
- 6
WitchSpring R
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required. Shares RPG with The Caligula Effect: Overdose.
WitchSpring R is a story-driven RPG combining elements of collecting, simulation, and battling. Experience the joy of training a young witch and accompany her on a grand adventure!
- 7
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.
- 8
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.
- 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
Frozen Synapse
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required.
Brings the simultaneous turn-based strategy genre up-to-date and lets you give detailed, accurate orders to your squad.
- 11
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.
- 12
Persona 4 Arena Ultimax
Single-player alternative to The Caligula Effect: Overdose — playable solo, no multiplayer required.
A Persona 4 Smackdown!
- 13
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.
- 14
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.
- 15
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”?
- 16
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!!
- 17
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!
- 18
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.
- 19
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.