Science Fiction 4k Wallpapers [ 90+ 4K Ultra HD Wallpapers ]

Chewbacca, the Wookiee from Star Wars, stands in a dark sci-fi corridor in this 4K Ultra HD PC desktop wallpaper and background.

2

4K+ Ultra HD (4096x2304)

112

Created By

Tags Chewbacca Star Wars 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)

393

Created By

Tags Corridor Science Fiction Spaceship

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)

419

Created By

Tags Mech 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.

6

4K+ Ultra HD (4344x2472)

1,151

Created By

Tags Spock Star Trek Science Fiction Cosplay

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)

154

Created By

CelestialCanvas

Tags Sleepcore Spaceship Science Fiction

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.

1

4K+ Ultra HD (4032x2304)

135

Created By

Tags Alien Science Fiction

Helldivers 2 sci-fi soldier kneels in a dusty sunset landscape with a glowing red device and rifle, featured in a 5K Ultra HD PC desktop wallpaper.

4K+ Ultra HD (5504x3072)

63

Shared By

Tags Helldivers 2 Soldier Video Game Science Fiction

Helldivers 2 science fiction soldier aiming a rifle in a rocky alien landscape, 5K Ultra HD PC desktop wallpaper and background.

4K+ Ultra HD (5504x3072)

70

Shared By

Tags Helldivers 2 Soldier Rifle Science Fiction

Once Human sci-fi video game 4K Ultra HD PC desktop wallpaper featuring an armed survivor facing a towering alien structure across the water.

4K+ Ultra HD (3840x2160)

132

Shared By

Tags Once Human Science Fiction Video Game

Mysterious alien surrounded by swirling purple magic in a dark science fiction scene, 4K Ultra HD PC desktop wallpaper.

4K+ Ultra HD (4096x2304)

42

Created By

Tags Alien Science Fiction Magic

The Outer Worlds 2 science fiction scene with two adventurers and a robot, 4K Ultra HD PC desktop wallpaper and background.

4K+ Ultra HD (4096x2304)

6

Shared By

Tags The Outer Worlds 2 Science Fiction

Star Trek Enterprise spaceship soaring through a colorful galaxy, 5K Ultra HD sci-fi space desktop wallpaper and background.

6

4K+ Ultra HD (5504x3072)

77

Created By

Tags Enterprise (Star Trek) Spaceship Science Fiction Space Star Trek

X-Wing science fiction spacecraft amid shattered glass in a 4K Ultra HD PC desktop wallpaper and background.

2

4K+ Ultra HD (4608x2592)

117

Created By

Tags X-Wing Spaceship Science Fiction Spacecraft

Bloodborne-inspired steampunk science fiction architecture with a lone figure beneath towering iron bridges, 4K Ultra HD PC desktop wallpaper.

4K+ Ultra HD (3840x2160)

34

Shared By

Tags Bloodborne Steampunk Science Fiction Architecture

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)

602

Created By

Tags Grumpy Alien Science Fiction