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A small weathered robot sits beside a single blue flower inside a glass dome on a red desert planet
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Video prompt Sci-fi & futuristic

The Last Garden on Mars: Lonely Robot AI Short Film Prompt

A battered boxy robot waters a single sprout under a cracked glass dome on Mars, day after day, until one morning it blooms. Wordless sci-fi with an emotional payoff travels across every language, and this prompt is built like a short film.

See the full prompt ↓
  • Aspect16:9
  • Length30 seconds
  • LevelMedium

A battered boxy robot waters a single sprout under a cracked glass dome on Mars, day after day, until one morning it blooms. Wordless sci-fi with an emotional payoff travels across every language, and this prompt is built like a short film.

TypeVideo
Best withVeo 3.1, Sora 2, Kling 2.5, Runway Gen-4
Aspect ratio16:9
Length30 seconds
DifficultyMedium
NicheSci-fi & futuristic

Emotional sci-fi shorts about lonely robots consistently go viral on YouTube Shorts and Facebook; they need no dialogue, so they work worldwide.

The master prompt

Copy it as it is, or change the parts in [BRACKETS] to make it yours.

Master prompt2,271 characters
Create a 30-second cinematic sci-fi short film in 16:9 with no dialogue. On a red desert planet, a weathered maintenance robot lives alone in a small cracked glass greenhouse dome and cares for the last living plant: a single sprout. Over many days it fails and tries again, until the plant blooms.

CHARACTER A (robot): boxy, knee-high, scuffed white panels patched with mismatched metal, rust streaks, one round blue lens eye that dims and brightens like an expression, two thin arms with simple grippers, tank treads, a tiny solar panel on its back.
SETTING: a geodesic glass dome about 4 metres wide with one cracked pane taped over, a single clay pot on a metal table, a dented watering can, a dusty shelf of empty pots; outside, a vast rust-red desert, distant mesas and a pale pink sky with two small moons. Same dome interior throughout.
CINEMATOGRAPHY: anamorphic widescreen, slow dolly moves, warm sunlight through dusty glass, floating dust motes, soft lens flares, muted red and teal palette, subtle film grain, realistic metal wear.

[00:00-00:05] ALONE — Extreme wide: the tiny glowing dome in the endless red desert at dawn. Push in through the glass to the robot rolling towards the table.
[00:05-00:10] ROUTINE — Close-ups: it lifts the dented can and pours exactly three drops of water onto a tiny sprout; its blue eye brightens.
[00:10-00:15] THE STORM — Days pass as light sweeps across: a dust storm batters the dome; the robot uses its own body to shield the cracked pane, sand hissing against it.
[00:15-00:20] DROOPING — After the storm, the sprout is bent and grey. The robot's eye dims; it sits beside the pot, motionless, as the sun sets.
[00:20-00:26] MORNING — First light hits the pot. The sprout has straightened; a single bud slowly opens into a small blue flower. The robot's eye flickers back to full brightness.
[00:26-00:30] TOGETHER — The robot gently turns the pot towards the sun and sits beside it; slow pull back through the glass to the dome glowing in the vast red landscape.

SOUND: wind and fine sand, soft servo whirs and treads, three water drops, the storm's roar, then a gentle piano and synth theme rising at the bloom.
RULES: no humans, no text or logos, consistent robot design and dome, realistic physics and textures.

Short version (for apps with a character limit)

Short prompt573 characters
Cinematic 16:9 sci-fi short, no dialogue, anamorphic. On a rust-red desert planet a knee-high boxy robot with scuffed patched white panels and one blue lens eye cares for the last sprout in a cracked glass dome, pouring three drops from a dented can each day. A dust storm hits; it shields the cracked pane with its body. Afterwards the sprout droops and its eye dims. Next morning the sprout stands tall and blooms into a small blue flower; the robot's eye glows and it turns the pot to the sun. Pull back to the glowing dome in the vast desert. Gentle piano at the bloom.

Shot-by-shot storyboard

  1. 00:00-00:05
    Alone

    Extreme wide: the tiny glowing dome in the endless red desert at dawn. Push in through the glass to the robot rolling towards the table.

  2. 00:05-00:10
    Routine

    Close-ups: it lifts the dented can and pours exactly three drops of water onto a tiny sprout; its blue eye brightens.

  3. 00:10-00:15
    The Storm

    Days pass as light sweeps across: a dust storm batters the dome; the robot uses its own body to shield the cracked pane, sand hissing against it.

  4. 00:15-00:20
    Drooping

    After the storm, the sprout is bent and grey. The robot's eye dims; it sits beside the pot, motionless, as the sun sets.

  5. 00:20-00:26
    Morning

    First light hits the pot. The sprout has straightened; a single bud slowly opens into a small blue flower. The robot's eye flickers back to full brightness.

  6. 00:26-00:30
    Together

    The robot gently turns the pot towards the sun and sits beside it; slow pull back through the glass to the dome glowing in the vast red landscape.

Keep the characters consistent

Paste this description into every clip so the character looks the same from shot to shot.

Character sheet216 characters
Gardener robot: Knee-high boxy maintenance robot, scuffed white panels patched with mismatched metal, rust streaks, one round blue lens eye, thin arms with simple grippers, tank treads, small solar panel on its back.

Sound and music

Wind, sand, servo whirs, three water drops, storm roar, gentle piano and synth at the bloom.

What to avoid (negative prompt)

Negative prompt84 characters
humans, text, logos, cartoon style, inconsistent robot, extra arms, CGI-plastic look

Remix it: ready-made variations

Ocean version

Prompt195 characters
Same lonely robot, now on the floor of a dried-up ocean, carefully filling a tiny tide pool with water drop by drop until a single small fish appears in it. Anamorphic, golden light, no dialogue.

City rooftop

Prompt183 characters
A small delivery robot on an abandoned city rooftop in 2090 grows a sunflower in a bucket; after a rainstorm it blooms and a bird lands on it. Warm cinematic light, no dialogue, 16:9.

9:16 Shorts cut

Prompt133 characters
Vertical 15-second cut: robot pours three drops → storm → wilted → bloom → eye glows. Keep the exact same robot and dome description.

Tips for each AI model

Model What to do
Veo 3.1 Make four 8-second clips and repeat the robot block; ask for 'anamorphic widescreen'.
Runway Gen-4 Use a robot reference image for every shot; Runway keeps references very consistent.
Sora 2 Sora handles 'days pass' transitions well; describe the light sweeping across the dome.

How to make it, step by step

  1. Design the robot. Make a clear front and three-quarter image of the robot.
  2. Build the shots. Generate establishing, routine, storm, droop and bloom shots separately.
  3. Score it. A simple piano theme does most of the emotional work.
  4. Title card at the end. Add a short title on black in your editor, not in the AI prompt.

Posting kit

A caption and hashtags you can use when you share your version.

Caption + hashtags115 characters
He waited 1,000 days for one flower 🌼🤖

#AIfilm #scifi #robot #shortfilm #AIvideo #Veo3 #Mars #emotional #cinematic

Questions

Why does wordless sci-fi work so well?

No language barrier, so the same video can reach viewers everywhere, and a simple emotional arc (care, loss, hope) keeps people watching.

How do I keep the robot identical?

Use the same character block in every clip and a reference image where your model supports it.

Can I extend it into a series?

Yes, give the robot new tiny missions on the same planet; consistent characters build subscribers.