D4 Enterprise is running two retro distribution lines in parallel: the paid EGG Console series on Nintendo eShop and Steam, and the subscription-based Project EGG. Its EGG Console catalog passed 118 entries with the October 2026 release of Agress PC-8801.
Across mid and late 2026, D4 Enterprise kept adding to the EGG Console line at a steady clip. The paid series runs on the Nintendo eShop and, in at least one case, Steam. Entries 102 through 118 arrived between June and October, drawing on Japanese PC software from the 1980s and 1990s: Marchen Veil II PC-9801 from System Sacom in 1986, First Queen IV PC-9801 from Kure Software Koubou in 1994, Relics MSX2 from Booster Technology or Bothtec in 1986, Dragon Slayer LEVEL 2.0 PC-8801 from Nihon Falcom in 1984, Subnac PC-9801 from Kogado Studio in 1991, and Agress PC-8801 from Riverhill Soft in 1986.
Prices vary by title rather than by platform or era. Agress, Dragon Slayer LEVEL 2.0, and Subnac are listed at 880 yen and 980 yen on the eShop, while the Steam release of Relics MSX2 is 1,200 yen. Subnac and Agress were numbered as the 115th and 118th EGG Console entries; Relics, First Queen IV, Marchen Veil II, and Dragon Slayer LEVEL 2.0 were numbered 106, 105, 102, and 109.
The EGG Console reissues add modern features. Relics MSX2 includes a Scene Select mode for jumping to specific scenes, final battles, and endings, plus a Gallery mode for the original manual and package art. Subnac and Dragon Slayer LEVEL 2.0 also carry a Gallery mode. Dragon Slayer LEVEL 2.0 has adjusted balance and new mechanics. First Queen IV adds dual-unit controls, fatigue mechanics, and mercenary hiring.
The two Relics stories overlap: D4 Enterprise announced on June 2, 2026 that the game would come to Steam on June 19 for 1,200 yen, and then released it for the Nintendo Switch on July 2 as the 106th EGG Console title. The Steam version was attributed to Bothtec; the Switch version attributes the original 1986 MSX2 game to Booster Technology.
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D4 Enterprise began distribution of "EGG Console Agress PC-8801" on October 8, 2026, priced at 880 yen with tax included. The 1986 Riverhill Soft adventure game follows the protagonist's search for his missing father, Dr. Duma, and his pursuit of Jason Cannack, a former assistant appointed director of the City Library. It is the 118th EGG Console entry.
D4 Enterprise began distributing EGG Console Subnac PC-9801 on September 10, 2026, priced at 980 yen including tax, as the 115th entry in the EGG Console series. The original Subnac is a 1991 fantasy puzzle game from Kogado Studio in which Alf uses a crimson mantle to revive petrified allies who revert to stone when separated from him.
D4 Enterprise began free distribution of the PC-6001 version of Seinaru Ken on Project EGG on September 8, 2026. The 1983 Crystal Software text adventure requires a Project EGG monthly subscription. Players guide a hero who loses his weapons to a demon king's trap and searches for the legendary Holy Sword. The game features one-character command input, support commands, and multiple endings.
D4 Enterprise released the 109th EGG Console title for Switch, Dragon Slayer LEVEL 2.0 PC-8801, on the Nintendo eShop for 880 yen. The action RPG, originally by Nihon Falcom in 1984, features adjusted balance, new mechanics, and a Gallery mode with original materials.
D4 Enterprise released Relics for the Nintendo Switch on July 2, 2026, as the 106th EGG Console title. Originally an MSX2 action adventure from Booster Technology in 1986, the game features a Spirit Ride possession system. The Switch version adds a Scene Select mode and a Gallery mode.
D4 Enterprise released "EGG Console First Queen IV PC-9801" on Nintendo eShop as the 105th title in the retro game service. The real-time simulation, originally from Kure Software Koubou in 1994, features the series' Gocha Character System and new dual-unit controls, fatigue mechanics, and mercenary hiring. The scenario is the largest in the series.
D4 Enterprise released Marchen Veil II PC-9801 on the Nintendo eShop as the 102nd EGG Console title. The action RPG, originally from System Sacom in 1986, follows a cursed Lake Prince. It alternates between visual story scenes and four-directional scrolling action, with enhanced speed, enemy attacks, and map size over the original.
D4 Enterprise announced on June 2, 2026, that Bothtec's 1986 action-adventure game "Relics MSX2" will be released on Steam as part of the EGG Console line on June 19, 2026, for 1,200 yen. The game is set in a mysterious ruin that rose from the sea, where the player controls a protagonist who exists as a spiritual entity with no clear objective. The core mechanic is the "Spirit Ride" possession system, which lets the protagonist take over the bodies of defeated enemies. The possessed body determines attack methods, stamina, and how other characters react, making body choice a strategic element. The original game was noted for its sci-fi character designs, detailed humanoid animations, and effective use of sound effects such as wave sounds, which created a cinematic experience for its time. The EGG Console version includes a Scene Select mode for jumping to specific scenes, final battles, and endings, plus a Gallery mode for viewing the original manual and package art. The Steam store page is already live.