Science Fiction 4k Wallpapers [ 40+ 4K Ultra HD Wallpapers ]

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.

15

4K+ Ultra HD (4072x2280)

2,199

Tags Sci Fi Sci Fi City Futuristic City Landscape Science Fiction

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

22

4K+ Ultra HD (5824x3264)

3,788

Tags Sci Fi Planetscape Spaceship Science Fiction Space

Stargate 4K Ultra HD PC desktop wallpaper/background: three silhouetted soldiers stand before a glowing ring portal, pyramids and an alien skyline beneath a starry night.

4

4K+ Ultra HD (4608x2592)

668

Tags Stargate Portal Soldier Pyramid Science Fiction

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

8

4K+ Ultra HD (4588x2621)

884

Tags Enterprise (Star Trek) Spaceship Science Fiction Galaxy Space

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

11

4K+ Ultra HD (3840x2160)

10,741

Tags Video Game EVE Online Space Spaceship Science Fiction

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)

615

Tags Sci Fi Spaceship Science Fiction Space

A detailed 4K Ultra HD sci-fi space station orbiting a planet against a vibrant galaxy backdrop in deep space.

11

4K+ Ultra HD (4072x2280)

1,336

Tags Sci Fi Space Station Science Fiction Galaxy Space

5K Ultra HD digital artwork portrait of a sci‑fi woman with glowing cyan and purple abstract circuitry on her face, high-detail futuristic desktop wallpaper.

4

4K+ Ultra HD (5824x3264)

1,106

Tags Digital Artwork Woman Abstract Portrait Science Fiction

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)

890

Tags Planet Alien Landscape Space Science Fiction Astronomy

A mesmerizing 4K Ultra HD wallpaper depicting an alien encounter, featuring twisting, luminous creatures in a dark, cosmic landscape filled with vibrant colors and intricate details.

3

4K+ Ultra HD (5824x3264)

617

Tags Sci Fi Alien Encounter Alien Landscape Science Fiction

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

4

4K+ Ultra HD (4344x2472)

877

Tags Spock Star Trek Science Fiction Cosplay

A stunning 4K Ultra HD desktop wallpaper featuring a sleek spaceship navigating through a vibrant warp drive, set against a swirling cosmic background.

3

4K+ Ultra HD (4248x2376)

506

Tags Warp Drive Spaceship Galaxy Science Fiction Cosmic

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)

207

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)

476

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)

451

Tags Grumpy Alien Science Fiction