Single-player games like PLANETOIDS
Below are 16 single-player Steam games similar to PLANETOIDS, 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 PLANETOIDS page.
Ranked picks
- 1

Arcade Galaxy
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Arcade Galaxy - a game made in 2D-hand-drawn graphics, which is a space arcade in a retro style.
- 2

DoDonPachi Resurrection Reignite
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
CAVE's arcade bullet hell shooter returns as DoDonPachi Resurrection Reignite. New stages, a new character, new music, and other new elements set the stage for a new challenge.
- 3

Mooncall
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
A retro vector arcade rescue game. Fly your ship to save stranded foragers from a crater-scarred moon, then walk the surface to build beacon networks while the asteroid storms close in. Don't ask about the red mushrooms as officially, they aren't there.
- 4

Aircraft Sketch Shooter
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Choose One of 4 Aircrafts and start to fight against Unique Boss Enemies.
- 5

Massive Effect
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Space shooter with multiple game modes. Destroy enemies, get experience and increase your level.
- 6

Flying propeller
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie and Simulation with PLANETOIDS.
You need to shoot back from hostile aircraft, including fighters, flying mines, helicopters
- 7

Ranphon
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Ranphon is a side-scrolling space shooter where you control a small ship called Phon in a vast and frantic space full of hostile spaceships.
- 8

Heart: Future Whispers
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Heart: Future Whispers is a top-down shooter where you'll face countless hordes of enemies with different abilities! Survive by using your resources to acquire powerful weapons and uncover the reason behind all the chaos in this dystopian future.
- 9

VoxFox
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie and Simulation with PLANETOIDS.
VoxFox - a cute real-time strategy made in voxel graphics for any age.
- 10

DuelVox
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
DuelVox - a first-person shooter in the western style. Defeat all the cowboys and become the best shooter in the wild west!
- 11

PhotoWorld
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie and Simulation with PLANETOIDS.
PhotoWorld is a calm travel game, the essence of which is to take beautiful photos.
- 12

Divine Stone
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
Divine Stone is a 2D platformer puzzle game in which you have to find answers to riddles that will definitely make you brainwash. In addition, time constraints and a variety of opponents will become an obstacle on your way.
- 13

LineVox
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie with PLANETOIDS.
LineVox is a casual cyberpunk game suitable for both one and several players, where you have to control the ship avoiding obstacles in order to win.
- 14

How does it work!?
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie with PLANETOIDS.
How does it work!? - Physics game in the genre of puzzle-constructor, performed in 3D graphics.
- 15

DuelVox: Max Quality
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Action and Indie with PLANETOIDS.
DuelVox: Max Quality is an offline first-person shooter made in western style. In this game there are many levels with different tasks, to complete them you will need ingenuity and dexterity, and sometimes even strategy.
- 16

PhotoWorld: Smooth Сorners
Single-player alternative to PLANETOIDS — playable solo, no multiplayer required. Shares Indie and Simulation with PLANETOIDS.
PhotoWorld: Smooth Corners is a third person 3D visual game in which the world is created for the player.