Single-player games like Invaders from the Third Dimension
Below are 8 single-player Steam games similar to Invaders from the Third Dimension, 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 Invaders from the Third Dimension page.
Ranked picks
- 1
Martian Invaders
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
WE HAVE ALIENS, YOU DON'T—Blast Martian invaders and flying saucers across 30 stages with robotic voice effects. Use your destructible shield, rescue army men for bonus points, and chase the high score.
- 2
Viral Reload EX
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
Viral Reload EX is a shoot-em-up with a dash mechanic where you shrink down to fight infections at a microscopic scale! Can you defeat the evil Kyle Kaboom before he destroys the moon?
- 3
Nova Swarm
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
Pick a ship, dive into readable bullet chaos, take down huge angry bosses, grab the bonus core you probably should have left alone, and chase one cleaner run in Nova Swarm.
- 4
Rockjack
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
A retro-inspired 2D space shoot-em-up. Mine asteroids! Shoot alien saucers! Get rich or die flying!
- 5
Humans Are Useless
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
A gang of nine aliens from another galaxy that were put to community service, want to clean the universe from what they think is the worst garbage: humans! Help them in this arcade game!
- 6
METEOR COMMANDER
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Casual with Invaders from the Third Dimension.
Retro-inspired arcade-style shooter. Save humanity from incoming waves of flaming hot meteors, alien ships hell-bent on destroying humanity, and the strangeness of space by shooting, blasting and nuking incoming waves of meteors and enemies.
- 7
Cosmotroid
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
Escape from the asteroid X-474 which has been invaded by aliens. Take your weapons and destroy every enemy who tries to stop you in this amazing arcade style third person shooter game full of action, creatures and explosions.
- 8
Hello Space
Single-player alternative to Invaders from the Third Dimension — playable solo, no multiplayer required. Shares Action and Indie with Invaders from the Third Dimension.
Dive into a 2D action game where you control a spaceship, defeat enemies and overcome deadly traps. Extend your arsenal by collecting new weapons and technologies for your ship that you will need to conquer four different dungeon-like worlds, all connected by an open space full of surprises.