# The Caligula Effect: Overdose Summer DB entity ID: 8581e57a\-db77\-42bf\-8e40\-8d18d7eb0181 Steam App ID: 889600 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 information - Type: game - Developer: FURYU Corporation, Engine Software BV - Publisher: NIS America, Inc\. - Release date: Mar 12, 2019 - Coming soon: false - Free to play: false - Parent Steam app: Not collected - Genres: RPG - Categories: Single\-player, Steam Achievements, Partial Controller Support, Steam Cloud, Family Sharing - Platforms: windows - Website: Not collected - Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_58916bc9b439d6dc8ec3736855c6d65bdec01c38\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_25ea9fa6aa7c7f1cfc38b3460e198f82a4561987\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_b897d233ff908c83d84a9b106594976e1124b7a2\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_ad4df13dcae0a3dbd81924394e1422a734765482\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_23905817aec877531223fdcd97d44878c55726d4\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_bc1d7847f1dec514fe0d2b63287ab4ad5031bdb4\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_9d272b92cc09578926f4528543fe5afc7cfcddd6\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_8beda0e098b654b61fc825be039fed813ecff215\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_da265d4442ae70eaf92d38931054a0ddce280cfe\.1920x1080\.jpg?t=1732662201, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/889600/ss\_50bebed66825c0c5540de76889addfc43a68bada\.1920x1080\.jpg?t=1732662201 - Price: 4999 minor units USD; discount 0% - Price country: US ## Observed metrics - Current players: 0 - Steam review count: 618 - Steam positive reviews: 453 - Steam negative reviews: 165 - Steam positive percentage: 73.30097087378641% - Summer DB rating: No native votes Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\} ## Player history [Seven-day chart data as Markdown](/api/v1/entities/8581e57a-db77-42bf-8e40-8d18d7eb0181/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/8581e57a-db77-42bf-8e40-8d18d7eb0181/player-metrics?days=7) Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown. ## Sources and freshness - Catalog membership: store\_catalog - Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00 - Details observed: 2026\-09\-23T15:43:22\.920512\+00:00 - Player count observed: 2026\-09\-23T15:43:24\.227353\+00:00 - Reviews observed: 2026\-09\-23T15:43:23\.87474\+00:00 Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/889600/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/889600/","players":"https://api\.steampowered\.com/ISteamUserStats/GetNumberOfCurrentPlayers/v1/?appid=889600","reviews":"https://store\.steampowered\.com/appreviews/889600"\},"price":"2026\-09\-23T15:43:22\.920512\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-23T15:43:22\.920512\+00:00","players":"2026\-09\-23T15:43:24\.227353\+00:00","reviews":"2026\-09\-23T15:43:23\.87474\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"05036217\-d1d9\-4cff\-aa68\-99db8fa40ff9","catalog":"4ffbaaae\-ca39\-4de4\-984f\-f91a67a3c9a9","details":"e6169a96\-c695\-46cf\-8a59\-88e18047ef1e","players":"27a4f710\-a6ca\-4a8a\-8e8b\-6931edbaff2e","reviews":"d97d4034\-af36\-4497\-9495\-0a9543a4e915"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\} Native rating methodology: \{"count":0,"average":null,"entityId":"8581e57a\-db77\-42bf\-8e40\-8d18d7eb0181","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\} Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted. [Steam store](https://store.steampowered.com/app/889600/) · [JSON](/api/v1/games/8581e57a-db77-42bf-8e40-8d18d7eb0181)