D4 Enterprise, a company notable for its work porting a plethora of Japanese retro PC games through their Project EGG series, is now on a new venture. To date, the majority of such releases have been hosted on D4’s own Project EGG site which primarily caters to PC gamers in Japan through a subscription system. The company also releases EGG console versions for Nintendo Switch via the worldwide eShops. However, a recent observation suggests that D4 Enterprise is prepared to expand their EGG console offerings to a global PC audience through Steam by setting up their unique corporate curator page there.
The inaugural title noticed on the page from D4 Enterprise is Hydlide 3: The Space Memories. This port will take its inspiration from the original PC-8801mkIISR version, which debuted in 1985. It’s noteworthy to mention that the Hydlide series, in its entirety, is already available on Nintendo Switch. This includes the 1985 MSX version of the inaugural Hydlide game released in 2024, the subsequent sequel from the same platform released in May 2025, and the Special Version of the third entry from the 1989 PC-9801 launched in the following July.
Visitors can find on the new Hydlide 3’s Steam page, the official screenshots and descriptions. As was the case with the Switch EGG Console versions, this PC port will largely stay faithful to the original Japanese version. However, by default, Hydlide 3 already integrates some English in its interface.
Hydlide 3 was first released as an action RPG by T&E SOFT in 1985. Its protagonist, selected by God for their pure heart, embarks on a journey to seal away an evil consciousness. It brings back the popular collision-based attack system from the previous game, and enriches the gameplay outfitting new magic spells like FIRE, ICE, WAVE, and JUMP. An expressive narrative of good and evil is well-presented through the addition of a new parameter called FORTH (conscience).
The game enhances depth to character development with activities around gathering information via conversation mode, shopping in towns, and a six-time larger map as compared to its predecessor. Highlight of its features included higher standards of quality and quantity. Labeled as an Active RPG at its time, it greatly focuses on action with combat strategies based on monster collision and mode-switching between attack and defense. Players can earn experience points by defeating monsters that enable level-ups and increased strength. In the event of injuries, health can be automatically restored by resting on flat areas.
This is an action RPG released by T&E SOFT in 1985. The protagonist, chosen by God for their pure heart, embarks on an adventure to seal away evil consciousness.
The popular collision-based attack system from the previous game is back, and this time, new magic such as FIRE, ICE, WAVE, and JUMP are introduced. With the addition of the parameter FORTH (conscience), concepts of good and evil are expressed. The game also features information gathering through conversation mode, shopping in towns, character development, and a map six times larger than the previous game, surpassing it in both quality and quantity.
Known as an Active RPG at the time, this game places a strong emphasis on action. Players switch between attack and defense modes while engaging in collision-based combat with monsters. Defeating monsters earns experience points, allowing for level-ups and increased strength. When injured, resting in flat areas automatically restores health.
*The main game and gallery screen (*Gallery) are in Japanese version.
*Other menu screens and “How to play” screens are in English.
■ Controls
This game can be played with an Xbox / PlayStation / Nintendo Switch controller, or with a PC keyboard.
For the best experience, we recommend playing with a controller.
Please note that keyboard behavior changes depending on whether a controller is connected.
[When no controller is connected (PC keyboard controls)]
Z / X / A / S: Xbox controller A / B / X / Y
Q / W: Xbox controller LB / RB
1 / 2: Xbox controller LT / RT (Speed Change / Virtual Keyboard)
3 / 4: Xbox controller LS / RS (Virtual Keyboard Settings)
Esc: Xbox controller View (Rewind)
Space: Xbox controller Menu (Pause Menu)
[When a controller is connected]
The PC keyboard functions as the same input as the virtual keyboard.
■Controls Tip (Faithful to the Original)
This game reproduces the original control scheme.
Normally, Space (A button) = Confirm and Enter (B button) = Cancel, but during name entry only, Enter = Confirm (Space inputs a blank space).
After entering your name, please use Space (A button) to confirm selections.
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