Iris was born in World DE-1, a world that mirrors Earth in the 2000s. With her birth, a series of tragic loops was set in motion, which were gradually unraveled by the efforts of Arata Mizunashi and his team.
With her goodwill restored, Iris created a copy of World DE-1 named World DE-1.5. Here, feuds gave way to friendship, each person a perfect cog in a perfect world. But a new crisis threatens the peace...
A mysterious man has entered the fray, and he leads a group of people who look identical to the world's former heroes. Our new hero, Sayaka Hiwatari, confronts the rising chaos, where friends and foes seem impossible to distinguish.
And so the battle with another world enters a new phase...
Key Features
No Strain No Gain - Delve deep into the deadly dungeons of the Strain Area, filled with randomly-generated monsters, traps, and more. Think carefully about your actions, because when you move, your enemies will get to take their turn as well. Explore every corner of a dungeon to find useful items, and try to make your way further and further down.
Blink and You're Dead - Every move you make may spell certain death in the form of dozens of violent Death Ends. You may even trigger a brutal Double Death End, featuring gruesome art by Kei Nanameda and overseen by the diabolically twisted Makoto Kodouin.
You Keep on Walking and You Don't Look Back - Your biggest challenge awaits at the bottom of each dungeon. Get ready to test your limits as you must fight a powerful boss. Once the boss is defeated, it's time to save your friend and try to make it out of the Strain Area alive, your new companion in tow.
Bring it Around Town! - Between trips to the Strain Area, make sure to take a break at home where you can stock up on invaluable items, head to the Night Owl Café to enhance your weapons, or check in on friends around town.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-03-30
Join the Easter Raid Party and Win a Free Game
The Easter season is here and since we like this part of the year so much, we have made sure to have prepared a special YUPLAY promotional campaign for those of you that are ready to go into the Raid Party and grab a FREE gaming title. All you have to do is make an order above 20€ between 02.04.2026 15:00 CET and 08.04.2026 15:00 CET, and you will get a FREE game as ab Easter present from us…
Early Spring season has definitely delivered on some exciting updates, game announcements, and promising releases to be on the lookout for until the end of this year. So, let’s immediately have a better look at some of the more outstanding news that happened on the gaming scene during the month of March 2026 that we decided to cover for you…
