Single-player games like Notrium
Below are 10 single-player Steam games similar to Notrium, 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 Notrium page.
Ranked picks
- 1

Rayna Survivors
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
Rayna Survivors is an action roguelite game where you need to slay hordes of foes and face bosses to learn powerful skills to upgrade your character.
- 2

Touhou Eternal Spell Cards
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
In Eastern Eternal Spell Cards,The balance between humans and yokai is at stake as the evil yokai, Black Shadow, awakens to conquer the Eastern world. Through intense bullet-hell battles, she faces challenging stages and enemies to become the savior. DISCORD:https://discord.gg/pQe2bgqEzC
- 3

Pixel Gun Master
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
Pixel Gunmaster is a roguelike shooter action game about a protagonist who is turned into a demon and goes on a journey to undo his wish. Will you be able to defeat powerful bosses and return to human form?
- 4

Swarm Survivor
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
A dark and moody top-down shooter. Unlock new weapons and upgrades by completing achievements, making each run different. Will you be able to escape the swarm?
- 5

Steinstern: Spacewar
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and RPG with Notrium.
The top-down shooter with loot and infinite progression. Find your way through randomly generated mazes. Level up your ship, find new weapons and upgrade them. Try to keep up with increasingly tough enemies!
- 6

Roguenarok
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
Destroy the enemy base before they can destroy your own. In this single-player MOBA action roguelite bullet-heaven, you play as a viking dinosaur wielding up 4 abilities and weapons at a time. Unlock new warriors and fight along with your soldiers and bring an end on the Alien’s reign.
- 7

Novi Blaster
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
Bullet Hell or Heaven? A rogue-like where you upgrade yourself and your enemies. Strategize around your build choices and dominate the battlefields of Novi Blaster.
- 8

Slimewest
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action and Indie with Notrium.
Face off against an invasion of slimes in this 2D roguelite with pixel art graphics. Play alone or with up to 4 friends and save the city from the devouring attack of these creatures. Get your weapon ready and embark on this bang bang western style adventure. Play now and prove your mettle!
- 9

Minecraft: Story Mode - A Telltale Games Series
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Adventure with Notrium.
Episode 1 is now FREE - for a limited time! In Minecraft: Story Mode, playing as either a male or female hero named 'Jesse,' you’ll embark on a perilous adventure across the Overworld, through the Nether, to the End, and beyond.
- 10

Minecraft Legends
Single-player alternative to Notrium — playable solo, no multiplayer required. Shares Action with Notrium.
Discover the mysteries of Minecraft Legends, a new action strategy game. Explore a gentle land of rich resources and lush biomes on the brink of destruction. The ravaging piglins have arrived, and it’s up to you to inspire your allies and lead them in strategic battles to save the Overworld!