70%Strong matchTin Can
86%98986% positive reviews, Very Positive across 989 reviews·Space · Survival
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Wake up to silence. One terminal, one survivor, one dying ship. Can you bring the Delta-4 back online? Delta 4 is a sci-fi survival terminal sim—type commands, decode logs, and fight to keep a dying ship alive.
Delta 4 Terminal Protocol
SteamGenre: Sci-Fi Survival • Interactive Fiction • Terminal Simulation Developer: Ignivar Technology Solutions
The year is 2139. Earth is gone. You awaken aboard the X-Delta-4, a refugee ship built from scrap and computer parts — drifting aimlessly toward Mars. A catastrophic hull breach has wiped out the crew. The only functioning system left is a battered command terminal in the crew quarters… and you.
Using your limited technical skill and intuition, you must bring the ship back online, uncover what happened, and survive long enough to complete the mission.
Every command matters. Every log tells a story.
🖥 Immersive Terminal Interface Experience the entire game through a simulated operating system — type commands, read system logs, navigate directories, and unlock secrets hidden deep within the ship’s core.
💾 Fully Simulated File System Explore subsystems like Engineering, Oxygen Scrubbers, Life Support, and CryoBay. Each contains files, logs, and encrypted data that piece together the fate of the X-Delta-4 and its lost crew.
🧠 Dynamic Narrative Unravel the story through text logs, system readouts, and corrupted communications. Every discovery reveals more about the ship’s mission — and the mysterious force that destroyed Earth.
⚙️ Realistic Command Environment Navigate the system like a true operator. Use familiar Linux-style commands (ls, cd, cat, vi, top, etc.), view processes, decrypt manifests, and reboot subsystems.
🎧 Atmospheric Sound Design Minimalist ambient sound and subtle system noises create a sense of deep-space isolation. Every beep and flicker adds tension as oxygen dwindles and power fades.
💀 Survival Under Pressure Your oxygen levels are constantly dropping. Repair life support, reroute power, and keep the ship alive — or watch it die around you.
The X-Delta-4 was never meant to fly. It was built by survivors — engineers, hackers, refugees — all fleeing the ruins of Earth. Now, drifting in the void, one survivor remains. The ship’s systems whisper of sabotage, hidden experiments, and forbidden technology. Somewhere in the engineering subsystem, a process named photonminer (PID 4892) quietly drains power…
Can you find the truth before your oxygen runs out?
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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