Science Fiction 4k Wallpapers [ 50+ 4K Ultra HD Wallpapers ]

Sci-fi themed HD desktop wallpaper featuring a spaceship flying over a distant planetscape with a large planet and moons in the background.

24

4K+ Ultra HD (5824x3264)

4,304

Created By

Tags Sci Fi Planetscape Spaceship Science Fiction Space

A stunning sci-fi cityscape reflected in water, featuring futuristic architecture, lush greenery, and a dramatic sky with clouds and a large celestial body, all in vibrant 4K Ultra HD quality.

18

4K+ Ultra HD (4072x2280)

2,825

Created By

Tags Sci Fi Sci Fi City Futuristic City Landscape Science Fiction

4K Ultra HD PC desktop wallpaper for Star Wars: Zero Company — ensemble of human and alien warriors, armored troopers and glowing lightsabers against a starfield sci‑fi backdrop.

2

4K+ Ultra HD (3840x2160)

521

Shared By

Tags Video Game Star Wars: Zero Company Star Wars Science Fiction Alien

HD desktop wallpaper featuring the Starship Enterprise from Star Trek, soaring through a vivid cosmic background filled with stars and nebulae.

9

4K+ Ultra HD (4588x2621)

1,207

Created By

Tags Enterprise (Star Trek) Spaceship Science Fiction Galaxy Space

4K Ultra HD PC desktop wallpaper: a science fiction combat mech stands on rocky terrain at sunset overlooking a ruined outpost and distant mountains.

1

4K+ Ultra HD (4008x2256)

253

Created By

Tags Mech Science Fiction

HD wallpaper of EVE Online featuring a dramatic space battle with ships and explosions near a large planet.

11

4K+ Ultra HD (3840x2160)

11,479

Shared By

Tags Video Game EVE Online Space Spaceship Science Fiction

4K Ultra HD sci‑fi spaceship corridor: dim, wet metal passage with armored figures, glowing consoles and a distant engine core — PC desktop wallpaper background.

3

4K+ Ultra HD (4008x2256)

276

Created By

Tags Corridor Science Fiction Spaceship

A stunning 4K Ultra HD wallpaper featuring a futuristic generation spaceship set against a fiery cosmic backdrop, embodying the essence of sci-fi adventure.

10

4K+ Ultra HD (4072x2280)

975

Created By

Tags Sci Fi Spaceship Science Fiction Space

A stunning 4K Ultra HD image showcasing a distant planet with a dramatic landscape of rocky formations and rolling terrain under a starry sky, creating an otherworldly atmosphere.

8

4K+ Ultra HD (4248x2376)

1,504

Created By

Tags Planet Alien Landscape Space Science Fiction Astronomy

A 4K Ultra HD wallpaper featuring Spock, showcasing his iconic Vulcan features and starfleet uniform as he stands poised with a phaser in hand.

6

4K+ Ultra HD (4344x2472)

1,064

Created By

Tags Spock Star Trek Science Fiction Cosplay

Alien Science Fiction 4K Ultra HD PC desktop wallpaper/background: hooded figure surrounded by towering wireframe-skinned humanoid aliens with glowing eyes and halo-like lattices under a stormy, reflective sky.

4K+ Ultra HD (4032x2304)

60

Created By

Tags Alien Science Fiction

Sleepcore spaceship scene: a sleeping figure curled on a cushioned nest atop a circular starship drifting through sunlit clouds — 4K Ultra HD science fiction PC desktop wallpaper

1

4K+ Ultra HD (4032x2304)

112

Created By

CelestialCanvas

Tags Sleepcore Spaceship Science Fiction

Time Travel 4K Ultra HD PC desktop wallpaper: armored traveler emerges from a glowing green time portal amid floating clocks and swirling temporal energy.

4K+ Ultra HD (4096x2304)

485

Created By

Tags Time Travel Time Traveler Science Fiction

4K Ultra HD sci-fi wallpaper depicting alien technology with a massive warp drive emitting a bright green laser beam in deep space.

1

4K+ Ultra HD (4656x2608)

709

Created By

Tags Warp Drive Laser Beam Science Fiction

A grumpy character with green skin and prominent eyebrows, set against a futuristic background, featured as a 4K Ultra HD PC desktop wallpaper and background.

4K+ Ultra HD (4248x2376)

592

Created By

Tags Grumpy Alien Science Fiction