A signal under the ice. A crew with too little time. A choice Earth will not understand.

Kryonull is a cinematic science-fiction visual novel set on Europa, the frozen moon of Jupiter. The expedition ship Sirena descends toward a thermal anomaly beneath the ice and a repeating radio pattern that sounds less like noise with every minute.

Every decision changes the mission profile: preserve the relay or chase the signal, drill slowly or force a narrow window, answer the ocean or leave in silence. Trust, hull integrity, oxygen, evidence, and biological risk shape the route to one of several endings.

Features

Branching sci-fi story inspired by tense first-contact cinema.
Multiple routes and endings based on mission discipline, crew trust, evidence, and risk.
Russian and English text support.
Voice acting for both Russian and English versions.
Original 1920x1080 background art for Europa, the under-ice ocean, laboratories, orbit, and mission-critical scenes.