Phantom PHANTOM OF INFERNO is available on Steam as of September 4, 2026, released by Nitro Origin at 3,500 yen including tax with Japanese, English, and Simplified Chinese text support. The port is based on the 2013 PC version that added TV anime elements, and the official website states there are no changes to the game content.
Nitro Origin announced on August 7, 2026 that the Steam version of Phantom PHANTOM OF INFERNO would launch on September 4, and the game released on that date at 3,500 yen including tax. The store page opened on the same day as the announcement, confirming the release date. The launch follows a January 1 announcement of the port.
The work is Nitroplus's first title, an adult PC release from 2000, and the debut of scenario writer Gen Urobuchi, later known for Puella Magi Madoka Magica and Fate/Zero. The Steam version matches the 2013 PC reverse port, which added TV anime elements. It supports Japanese, English, and Simplified Chinese text with full Japanese voice. The official website states there are no changes to the game content.
The story follows Reiji Azuma, a boy on a solo trip to America who witnesses an incident and learns Phantom, the organization's strongest assassin, is a girl his age. He is abducted, his memories erased, and he is trained in assassination techniques, becoming one of the organization's top killers before internal conspiracies pull him in. Coverage of the announcement also noted the brand has indicated other works are scheduled for sequential Steam ports.
Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.
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Nitro Origin released Phantom PHANTOM OF INFERNO on Steam today, September 4. The hardboiled text adventure, originally Nitroplus's first title from 2000, is the debut work of scenario writer Gen Urobuchi. The Steam version matches the 2013 PC reverse port, which added TV anime elements. It supports Japanese, English, and Simplified Chinese, with full Japanese voice. Price is 3500 yen.
Nitro Origin, the brand behind Nitroplus, announced on August 7 that the Steam version of Phantom PHANTOM OF INFERNO will launch on September 4. The visual novel, priced at 3,500 yen including tax, supports Japanese, English, and Simplified Chinese text, with Japanese-only voice. The game is based on the 2000 adult PC release, which was Nitroplus's first title and the debut work of scenario writer Gen Urobuchi, later known for Puella Magi Madoka Magica and Fate/Zero. The story follows Reiji Azuma, a boy on a solo trip to America who witnesses an incident and learns the true identity of Phantom, the organization's strongest assassin, is a girl his age. After being abducted and having his memories erased, he is trained in assassination techniques and becomes one of the organization's top killers, eventually drawn into internal conspiracies. The Steam version is based on the 2013 PC port that added TV anime elements, and the official website states there are no changes to the game content. The store page opened on August 7, confirming the release date, following a January 1 announcement of the port.