When a global war nearly decimated humankind, an evil military organization called Oniken takes advantage of the situation to dominate and oppress the few remaining survivors. Even though any resistance to this organization seemed hopeless, a small rebel movement organizes strikes against Oniken. One day, a ninja mercenary named Zaku offers his services to the resistance for unknown reasons. His moves are lethal and now he is the resistance's only hope.
Oniken is an action platform game highly inspired by the 1980's, its games and its movies. You can see this not only in the graphics and sound design, but also in Oniken's story and difficulty.
Don't Worry, You Will Die A Lot Of Times.
Every copy of Oniken comes with digital versions of the game manual and the original soundtrack.
Features
Graphics, sounds and difficulty from the 8-bit era
Cinematic cutscenes
Over 18 boss fights
Six missions, three stages each
An extra mission after you beat the game
Boss rush mode
Not difficult enough? Try the new HARDCORE MODE
Global Leaderboards
Full pixelated violence
To activate the game, you need a Steam Account
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
2026-08-07
Yet Another Chance to Earn Extra 50 YXP
Summer is already in full swing and YUPLAY has decided to give you yet another chance to earn an additional 50 YXP to help you reach the next rank. On top of the YXP you receive based on the amount of your purchase, you will also earn these additional 50 bonus YXP for limited time only. All you need to do is make a purchase of at least €10 between 07.08.2026 15:00 CET and 10.08.2026 15:00 CET and receive an extra 50 YXP for our Loyalty Program…
The Summer Sale Returns: Bigger Deals for 48 Hours Only
Summer is here and we are already preparing for a super fresh season full of incredible delights and heated moments! Make an order of over 15€ between 31.07.2026 13:00 CET and 02.08.2026 15:00 CET and you will get our special SUMMER DEALS GIFT, which will contain one of the following: discount codes - 10% OFF, 20% OFF, 25% OFF or 50% OFF; discount vouchers - 1€, 2€, 5 or 10€; or a FREE GAME…
