The Caligula Effect: Overdose

Turn-based JRPG where you preview enemy moves before choosing attacks

FURYU Corporation, Engine Software BV · Published by NIS America, Inc. · Released Mar 12, 2019

Reviews: Mostly Positive; 72% of 534
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 29, 2026
Steam Deck: Unsupported
Last update on Steam: 7 years ago; Mar 14, 2019
Minimum PC: 450 GTS; 4 GB RAM · 6 GB disk; Full requirements

What is The Caligula Effect: Overdose?

This single-player RPG takes place in Mobius, a virtual world where a sentient vocal program lets people relive high school to escape real-life problems. You explore, befriend fellow students to improve your battle skills, and fight with a party as the Go-Home Club seeks a way back to reality.

For you if...

+you enjoy timing party combos, counters, and aerial attacks

Not for you if...

−you prefer focused side quests over befriending hundreds of NPCs

What players say

72% of 534 reviews are positive

Players praise the music and individual character stories. Common complaints include repetitive battles, drawn-out dungeons, and bland character models.

Screenshots and trailer

The Caligula Effect: Overdose screenshot 1

The Caligula Effect: Overdose system requirements

Minimum: 450 GTS, 4 GB RAM, 6 GB of disk space.

As published by the developer.

Can my PC run The Caligula Effect: Overdose?

Tell us your graphics card once and every game page will answer this for you.

Set up my PC →

Minimum

OS: Windows 7 64-bit or later
Processor: Dual-core Intel or AMD processor, 2.5 GHz or faster
Graphics: NVIDIA GeForce 450 GTS or AMD Radeon 6770 HD
Memory: 4 GB RAM
Storage: 6 GB available space
DirectX: Version 11
Notes: 3D Resolution Scale at 50%

Does The Caligula Effect: Overdose have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does The Caligula Effect: Overdose run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Not supported on SteamOS

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 37
Steam features: Cloud saves, Family Sharing
Age rating: 17+
Languages: Full audio: Japanese. Text only: English.

Does The Caligula Effect: Overdose use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam