
This open-world survival crafting game puts you, an amnesiac protagonist, on a journey to rediscover your true self. Explore islands and oceans, crafting weapons, watercraft, and shelters to survive. Face threats as you uncover the mysteries of your past and reclaim lost memories.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
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Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
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Right now the cheapest offer for Undefined Survivors -アンディファインド サバイバーズ- is CA$38.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Undefined Survivors -アンディファインド サバイバーズ- is CA$38.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
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"Undefined Survivors" is an open-world survival crafting game where you, an amnesiac protagonist, embark on a journey to rediscover your true self.

You find yourself waking up on a sandy shore, only to realize you’ve lost all your memories. The island is teeming with untamed nature and dangerous wildlife. Beyond its shores, the remnants of cities and ancient ruins lie submerged beneath the surrounding seas.

The island appears deserted, with no signs of human life, yet it is rich with untamed nature and scattered remnants of a lost civilization. To uncover clues, you must venture not only across the land but also beneath the waves. Both the island and the sea are fraught with dangers, requiring careful preparation and a variety of strategies for survival.

Explore and collect resources to craft weapons and tools for your survival. The weapons you create will not only help protect you from dangerous creatures but also enable you to hunt for food and other necessities.

Hunger and thirst are also threats you’ll face in this harsh world. Secure food and fresh water to survive, and level up your cooking skills to prepare meals that sustain you and stave off starvation.

Beneath the waves lie the remnants of once-thriving cities and traces of human life. As you gaze upon the underwater streets, a strange sense of nostalgia washes over you, and fragments of your lost memories begin to resurface. Among the ruins, you’ll also find resources that could prove invaluable for your journey.
However, your time underwater is limited by your ability to breathe. Craft equipment like oxygen tanks to extend your underwater exploration and make the most of the treasures hidden below.

A long and uncertain journey awaits, as you seek to uncover what happened to this world and what might awaken the fragments of your lost memories. With each step forward, you will draw closer to the truth hidden within your past.