A grounded post-apocalyptic interactive narrative. Fortify the Black Box shelter, manage supplies, trust, and evidence, and decide who survives on either side of the iron gate.

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About This Game

Before you close the Iron Gate, decide who gets to stand inside it

Beneath the Iron Gate is a grounded post-apocalyptic interactive cinematic narrative. You play as Lu Chen, a former security systems engineer who turns an old cold-chain warehouse into the Black Box, a shelter built before the city goes silent and public order collapses.

The shelter is not the end. It is where the choices begin

Every supply run, every opened door, and every broadcast can redirect the route ahead. You will weigh food, medicine, fuel, water, reputation, and trust. A decision that looks correct tonight may become the cost you pay during the siege.

Evidence can hit harder than a weapon, if you survive long enough to use it

The Ark Society controls vaccine batches, registry systems, and broadcast channels. You will gather sample IDs, ledgers, access records, and witness testimony, then decide when to turn silence into proof. Revealing the truth can save people, but it can also bring the enemy to your gate.

Not every ally learns to trust you the same way

An emergency doctor, a supply-chain manager, a retired tactical officer, a radio host, a lab assistant, and the shelter's ordinary survivors all carry their own limits and fears. Trust is not just a reward meter. It is whether someone still stands beside you when the gate alarm starts.

Branches, bonds, and endings

The story follows resource, medical, broadcast, truth, siege, and relationship routes. Your choices affect supplies, character trust, public reputation, ruthlessness, and the final route. You can turn the Black Box into a cold fortress, or into a community still willing to open the door.

Features

  • Grounded post-apocalyptic interactive storytelling with still-frame presentation, subtitles, voice, and soft cinematic transitions.

  • Choice-driven route structure where resources, trust, evidence, and public reputation keep shaping later scenes.

  • Character bond routes built around alliance, boundaries, affection, and responsibility.

  • Multiple ending directions, including fortress survival, medical commonwealth, radio fireseed, and hidden truth routes.

  • A focused single-player experience about judgment, tradeoffs, and consequences rather than grind.

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

This game includes pre-generated content made with the assistance of generative AI tools during development. AI tools were used to help create and iterate some static story illustrations, character and store-art references, voice and sound-effect materials, texture details, copy polishing, and localization drafts. All such content is selected, edited, assembled, and manually reviewed by the developer before shipping. The game does not connect to a live generative AI service during play and does not generate new player-facing AI content at runtime.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10 64 位
    • Processor: Intel Core i3-6100 / AMD FX-8350 或同等性能
    • Memory: 4 GB RAM
    • Graphics: DirectX 12 兼容显卡,2 GB VRAM;NVIDIA GeForce GTX 750 Ti / AMD Radeon R7 260X 或同等性能
    • DirectX: Version 12
    • Storage: 6 GB available space
    • Sound Card: Windows 兼容声卡
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10/11 64 位
    • Processor: Intel Core i5-8400 / AMD Ryzen 5 2600 或同等性能
    • Memory: 8 GB RAM
    • Graphics: DirectX 12 兼容显卡,4 GB VRAM;NVIDIA GeForce GTX 1050 Ti / AMD Radeon RX 560 或同等性能
    • DirectX: Version 12
    • Storage: 6 GB available space
    • Sound Card: Windows 兼容声卡
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