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NianNian's Nightmare

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NianNian's Nightmare

PlayerGuo · Published by PlayerGuo

Last updated 28 Sept 2026

A side-scrolling survival-builder merging modern industry and martial arts. Explore a spore-ravaged world: gather resources, build shelters, develop tech to craft guns and mechs, or master melee combat. Farm, tame creatures, and battle terrifying mutants to survive.

Free to PlayComing SoonDJCTQ 141 DLC available ↗Co-op

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Action, Adventure, Indie, RPG, Casual · 2026 · More free games

About this game

After dozing off in biology class, an ordinary high schooler named Guo Xiaonian (NianNian) unexpectedly transmigrates to an ancient, otherworldly realm. This world has been utterly devastated by bizarre spores carried by alien meteorites. These meteorites struck multiple regions, infecting the local flora and fauna. The spores trigger rapid, chaotic genetic mutations, turning creatures into mindless walking corpses driven only by the urge to kill. Worse still, any creature slain by these monsters is rapidly parasitized by the spores, triggering a chain reaction of mutations. Through this terrifying cycle, the spore’s influence has spread exponentially, asserting absolute dominance over the world.

Armed only with modern academic knowledge, NianNian must navigate this brutal, ruined otherworld. His goal: survive, track down every alien meteorite across the regions, destroy them, restore the shattered world, and find a way back to reality.

In this game, you must gather resources and develop an industrial base to craft powerful modern equipment and gadgets. Alternatively, you can immerse yourself in this world’s martial arts, mastering cold weapons to enhance your personal combat prowess and looting stronger gear from formidable foes. But above all else in the early game—just survive.

Combat:
Choose from a diverse arsenal of weapons, including single-handed swords, dual blades, greatswords, bows, spears, and gauntlets—each offering a unique combat style and moveset. By investing in talent trees, you can upgrade your weapons and unlock distinct, devastating combat combos.

Building:
Construct simple shelters and houses to create a safe haven, and build defensive structures to ward off the lurking horrors of the outside world.

Technology:
Leverage NianNian’s modern knowledge to build advanced production facilities. Construct looms, forging stations, generators, and machining tools. These facilities allow you to process raw materials and eventually manufacture high-end modern warfare equipment, ranging from rocket launchers and assault rifles to towering war mechas.

Farming:
Collect seeds from your explorations and cultivate them to secure essential ingredients for cooking. Grow wheat for flour, or plant garlic for that extra flavorful spice to boost your survival.

Taming:
Befriend and tame neutral creatures to serve as mounts for faster travel, pack animals for carrying loot, or combat companions. You can also build ranches to keep them safe, providing a steady stream of passive resources like sheep milk and eggs.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • OS *: Windows 7
  • Processor: Intel Core 2 Duo E5200
  • Memory: 4 GB RAM
  • Graphics: GeForece 9800GTX+(1GB)
  • DirectX: Version 10
  • Storage: 6 GB available space

Recommended

Recommended:
  • OS: Windows 10
  • Processor: Intel Core i5
  • Memory: 8 GB RAM
  • Graphics: GeForce GTX 560+
  • DirectX: Version 10
  • Storage: 6 GB available space

Supported Languages

Simplified Chinese, English

Latest news

  • Patch NotesOfficial

    New Demo Update: Co-op Mode

    Co-op Mode Added: You can now play with a friend! The game supports 2-player online co-op. You can either generate an Invite Code by clicking the “Invite Friend” button, or directly invite players from your Steam Friends list. As this is a new feature, you might encounter some bugs or issues during multiplayer sessions. Custom Difficulty Settings Added: We’ve added new difficulty settings! You can now customize your gameplay experience by adjusting monster strength, the speed of the day/night cycle, and whether items drop upon death. More customizable options will be rolling out in future updates, such as plant growth time and resource drop rates.
    Read full article on Community Announcements (萝掷翔)
  • AnnouncementsOfficial

    Demo is now live!

    The demo offers about 1 hour of gameplay and concludes after surviving for 3 in-game days. Aside from that, there are no other restrictions. We hope you enjoy the experience! If you encounter any issues, please feel free to leave your feedback in the community.
    Read full article on Community Announcements (萝掷翔)
  • AnnouncementsOfficial

    Playtest Reopened!

    As known issues are being fixed one by one, I’ve reopened the Playtest. I hope everyone will actively participate! .Thank you all for your support!
    Read full article on Community Announcements (萝掷翔)
  • AnnouncementsOfficial

    Playtest Paused for Fixes, Back Soon!

    Thank you for your anticipation. We are temporarily closing the Playtest due to a number of outstanding issues. Please wait a little while;it will reopen once the problems are resolved!
    Read full article on Community Announcements (萝掷翔)
  • AnnouncementsOfficial

    Playtest access will be sent out gradually.

    I am truly grateful to everyone willing to playtest my game. After a week of hard work, I’ve finally got the playtest build fixed up to a state where it runs smoothly.I will be approving playtest requests gradually from here on out. If you encounter any issues in the game, please feel free to discuss them in the community or leave a review. I will carefully consider all of your valuable feedback.
    Read full article on Community Announcements (萝掷翔)

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