That's 0.3 fried chickens (at ₩20,000 per chicken)
Every expedition is a gamble. Explore procedurally generated underground facilities, recover valuable loot, survive unique monsters, and escape before it's too late.
Should you buy?
It went on sale 1 times in the past year. Set a price alert to hear about the next one right away.
This is for reference, based on past price records, and doesn't guarantee future prices. Prices from before Wish9 started tracking and the all-time low come from IsThereAnyDeal.
Only opinions at this same price are counted. You can vote without logging in.
Small hollow dots are price history from before Wish9 started tracking, taken from IsThereAnyDeal. A dot appears only when the price changes.
We'll message you on Discord when the price drops to your target or below. No login needed.
The webhook URL is used only to send alerts, and you can remove it any time with the turn-off link in the message.
Full audio · Listed languages are supported in the interface, subtitles, or audio (at least one).
A routine expedition into an abandoned underground facility quickly turns into a fight for survival. The deeper you descend, the less the complex obeys the rules of reality. Corridors shift, forgotten systems come back online, and something in the darkness has begun hunting again.
Play solo or with friends as you explore procedurally generated underground facilities in search of valuable loot. Every expedition presents a new layout, new dangers, and one difficult question:
How much farther are you willing to go before it's too late?
Recover valuable equipment, manage your limited resources, unlock abandoned computer terminals, restore forgotten systems, and decide whether the next room is worth the risk.
But you're not alone.
Every creature follows its own rules. Some hunt by sound. Some wait for you to make a mistake. Others force your entire team to adapt or die. Learning how they behave is often the only way to survive.
Play solo or in online co-op.
Procedurally generated underground facilities with high replayability.
Unique monsters, each requiring a different survival strategy.
Risk-versus-reward gameplay where greed can cost everything.
Valuable loot, equipment, and limited resources.
Interactive terminals, security systems, and environmental storytelling.
Atmospheric psychological horror with immersive sound design.
Every expedition is a gamble.
The deeper you go...
...the harder it is to come back.
Biohazard Protocol costs ₩6,700 right now.
Based on Wish9's price records and IsThereAnyDeal history, the lowest price is ₩5,360.
The lowest recorded price is ₩5,360. It's 25% higher right now. It has gone on sale 1 time in the past year. The next big Steam sale, the Steam Winter Sale, starts in 34 days. This is for reference, based on past price records, and doesn't guarantee future prices.
Recommended: Graphics card NVIDIA GTX 1660 / AMD RX 580, Processor Intel Core i5-10400 / AMD Ryzen 5 3600, Memory 16 GB RAM. Minimum: Graphics card NVIDIA GTX 960 / AMD RX 470, Processor Intel Core i5-7400 / AMD Ryzen 3 1200, Memory 8 GB RAM. Save your PC specs on Wish9 to compare them with this game instantly.
