Single-player games like Nuclear Gladiators 3000
Below are 14 single-player Steam games similar to Nuclear Gladiators 3000, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Nuclear Gladiators 3000 page.
Ranked picks
- 1

Shape Shipter
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Embark on an retro adventure of ever-changing challenges. Adapt to unique ships, dodge bullets, blast enemies, and shape-shift your way to victory. Get ready for non-stop excitement and pure arcade fun!
- 2

Pixel Evolution
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
A twin-stick arena shooter where every run rebuilds the game itself. Collect pixels, survive the constant HP drain, and complete each upgrade checklist to COMPILE the next era — evolving from 1-bit monochrome all the way to 3D, one boss at a time.
- 3

Neon Swarm
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
A pure neon arcade survivor-like: dodge swarming hordes, dash through walls of bullets and forge devastating builds from 200+ synergizing items. 6 ships with unique ultimates, 8 mega-bosses, rising Threat levels, endless mode and a daily challenge.
- 4

Steel Swarm: SURVIVOR
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Steel Swarm: SURVIVOR is a fast-paced roguelite survivors game where you obliterate swarms with your drones. Set up formations, upgrade your drones, and overwhelm hordes of metal in each run. Take on enemy waves solo or in multiplayer co-op!
- 5

Cosmic Flesh: Overdrive
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Defend the galaxy from endless cosmic horrors. Dash and blast with fast, burst-based piloting, unleash powerful overdrives, evolve your ship with each unique run, and push your skills to the limit.
- 6

Cosmic Run
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Cosmic Run is a single-player space roguelite where you battle relentless galactic enemies, strategically upgrade your ship, and help the Zogark family survive their journey across the galaxy. Build powerful combinations, adapt to chaotic encounters, and escape one broken system after another.
- 7

Void Runner
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Dive into the Void. Dodge, fire, restart. Sharpen your build run after run and claim a spot on the global Top 10. A pure, demanding arcade roguelite: 28 evolving skills, 5 hand-crafted worlds or endless survival. Your skill, your ladder.
- 8

XenoTechArena
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Don't kill your enemies — make them collide!! Unleash devastating chain reactions and wipe out endless hordes in this one-man-army Roguelike arena shooter. Fuse classes, collect upgrades, and build a one-of-a-kind ultimate warrior with limitless combinations.
- 9

Vampire Survivors
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Mow down thousands of night creatures and survive until dawn! Vampire Survivors is a gothic horror casual game with rogue-lite elements, where your choices can allow you to quickly snowball against the hundreds of monsters that get thrown at you. Be the bullet hell!
- 10

Smash
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required.
Click on the mouse left button to destroy the glass pyramids & push away the obstacles. Stay focused and concentrate on the path destroy every pyramid and push away obstacles coming in the path.
- 11

CARnage
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required.
A top-down arcade combat racing game that celebrates the classic 2d racing games of old. Upgrade and expand your garage of vehicles to survive the dystopian future that is CARnage.
- 12

Running Man 3D
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required.
If you want to relax and rest, this game is for you.Go through the levels collecting all the balls and soon run to the finish.Good luck!
- 13

The Running Man
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
If you want to relax, this game is not for you, this game is made to make you rage. go through challenging and hard levels and run to the finish line. will you take the challenge?
- 14

Halls of Torment
Single-player alternative to Nuclear Gladiators 3000 — playable solo, no multiplayer required. Shares Action with Nuclear Gladiators 3000.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?