The Caligula Effect: Overdose
Mobius. An idyllic world that lets people forget about the pain and problems of reality. Created by a sentient vocaloid program, μ (Mu), reality and fantasy have become blurred, allowing people to relive their high school years in bliss -- but just how real is a virtual happiness?
Offers
What are keyshops?Official stores
Official stores with direct support.
Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Multipacks (1)
DLCs (16)
About The Caligula Effect: Overdose
Relapse into the virtual world
Mobius. An idyllic world that exists for the sake of letting people forget about the pain and problems of reality. In this world created by a sentient vocaloid program, μ (Mu), reality and fantasy has become blurred, allowing people to relive their high school years in bliss. Yet in this seemingly beautiful and perfect world, something is amiss.
Escape from this false paradise with your fellow students and return to reality in The Caligula Effect: Overdose!
Key Features:
An Overdose of New Features - The Caligula Effect: Overdose boasts enhanced visuals and gameplay! Explore new scenarios, endings, and the “Forbidden Musician Route” while escaping the virtual world of Mobius.
The New Faces of Kishimai High - Play as the newly added female protagonist! Plus, meet two new members of the Go-Home Club, who each have their own new Ostinato Musician to face.
Use the Imaginary Chain! - Turn-based battle meets exhilarating action in this refined JRPG battle system! Develop a flawless strategy after using the Imaginary Chain to predict what your enemies will do next!
Unite and Escape - Sometimes, it’s hard to go it alone. Befriend over 500 other students in this imaginary paradise to improve your skills in battle and ultimately return to reality.
Game details
Game details
Age ratings
Game modes
The Caligula Effect: Overdose price history
Lowest tracked price: €24.99 (Jul 7, 2026) · current best: €49.99 across 4 stores.
The Caligula Effect: Overdose player count & reviews
73% positive reviews all-time · 8 peak players in the last 30 days.
The Caligula Effect: Overdose — frequently asked questions
Where can I buy The Caligula Effect: Overdose at the cheapest price?
Right now the cheapest offer for The Caligula Effect: Overdose is €49.99 at Steam. KingsPrice compares 4 offers from 4 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price The Caligula Effect: Overdose has ever been?
The lowest price KingsPrice has tracked for The Caligula Effect: Overdose is €24.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play The Caligula Effect: Overdose?
The Caligula Effect: Overdose peaked at 8 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Is it safe to buy a The Caligula Effect: Overdose Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get The Caligula Effect: Overdose at a discount?
Create a free price alert on this page and KingsPrice will email you when The Caligula Effect: Overdose drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *: Windows 7 64-bit or later
- Processor: Dual-core Intel or AMD processor, 2.5 GHz or faster
- Memory: 4 GB RAM
- Graphics: NVIDIA GeForce 450 GTS or AMD Radeon 6770 HD
- DirectX: Version 11
- Storage: 6 GB available space
- Additional Notes: 3D Resolution Scale at 50%
Recommended
- OS *: Windows 7 64-bit or later
- Processor: Quad-core Intel or AMD processor, 2.5 GHz or faster
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce 470 GTX or AMD Radeon 6870 HD
- DirectX: Version 11
- Storage: 6 GB available space
- Additional Notes: 3D Resolution Scale at 100%
