Crash on Planet X world illustration - Science Fiction theme
Science Fiction

Crash on Planet X

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maxtyl

Your ship has crash-landed on an uncharted planet. There are no signs of civilization—only an endless, hostile wilderness teeming with lifeforms that don’t fear you, they hunt you. The atmosphere is barely breathable, storms rage unpredictably, and the native ecosystem is as beautiful as it is lethal. No backup, no escape route. You must survive with what’s left of your ship, scavenging and adapting to a world that does not want you here.


Author's Note: - Genre: Hardcore Survival Horror / Sci-Fi Wilderness Exploration - Atmosphere: Vast, oppressive, alien. The planet is untouched by civilization. Towering predatory flora, violent weather patterns, and a hyper-adaptive food chain. - Visual Style: Alien jungles with bioluminescent canopies, bone-dry canyons filled with toxic fog, oceans of liquid methane, and insect-like hives built into natural rock formations. - Tone: Gritty, realistic survival. The planet is indifferent to human presence. There are no ancient ruins, no intelligent species—only an ecosystem that reacts aggressively to intruders. - Creatures: Entirely original fauna. Predators are designed based on real-world extreme survival adaptations (camouflage, ambush predators, swarm tactics). Avoid humanoid enemies. Emphasize *alien biology* (multi-limbed, eyeless, hive-mind behaviors, etc.). - Environmental Threats: Acid rain, magnetic storms, tectonic shifts, suffocating fungal spores, parasites. The environment itself is an active threat. - Story Loop: Players must scavenge shipwreck debris, build makeshift shelters, craft survival tools, and explore for essential resources (water, breathable air, power cells). - Escalation: As players venture further, the ecosystem reacts to them. Predators track them across distances, migration patterns are disrupted, and their mere presence causes ecological ripples. - Opening Scene: Players regain consciousness in the wreckage, alarms blaring. Hull breaches expose them to a toxic atmosphere. Supplies are minimal, and night is approaching fast. - Dialogue Tone: Tense, minimalistic, survival-focused. The ship’s AI may be fragmented or offline. Communication is through raw data feeds or glitchy interfaces. - Thematic Focus: Isolation, resourcefulness, and the overwhelming indifference of nature.
Played5 times
Cloned0 times
Created
3 days ago
Last Updated
Yesterday
VisibilityPublic
Stalker Leech
CR 1Small Beast
Stalker Leech
HP Range20 - 34 (Avg: 27)
AC13
XP200

Description

A grotesque slug-like amphibious parasite that latches onto victims' backs, draining fluids and hijacking their neural control to manipulate movement.

Details
SizeSmall
TypeBeast
CR1
XP200
LanguagesNone
Defenses
Armor Class13
HP Range20 - 34 (Avg: 27)
Damage VulnerabilitiesNone
Damage ResistancesNone
Damage ImmunitiesNone
Condition ImmunitiesNone
Actions

Acidic Mucus Trail

The Stalker Leech leaves a trail of corrosive slime in a 5-foot-wide path behind it. Any nonmagical metal or wooden equipment that comes into contact with the trail takes 3 (1d6) acid damage per minute. The terrain in the trail area is considered difficult terrain and takes 3 (1d6) acid damage per minute.

Neuro-Leech Attachment

The Stalker Leech attaches to a creature's back. While attached, the victim must succeed on a DC 12 Wisdom saving throw at the start of each of its turns or lose control of its movement, which the leech dictates. The leech drains 5 (1d10) hit points at the start of each of the victim's turns.

This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC . The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License.
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