Single-player games like Cosmic Tails
Below are 8 single-player Steam games similar to Cosmic Tails, 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 Cosmic Tails page.
Ranked picks
- 1

I'm No Demonlord
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
"I'm No Demonlord" is a Roguelike shooter bullet hell game. High freedom in mechanics leads to unique playthroughs. As a demon-possessed hero, battle enemies, grow, and unveil dark schemes. Can he accept his new role? Save "kinds" or destroy "outsiders"? Good or evil? The choice is yours.
- 2

Noobs Are Coming
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
YOU ARE THE FINAL BOSS. Brutal synergy arena roguelike. Pick your Final Boss character, equip boss patterns and combine tons of attacks to create unique builds. Play solo or in co-op!
- 3

NeuroVoider
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
NeuroVoider is a twin-stick shooter RPG set in a cyber futuristic world about brains shooting around evil robots with nuclear rocket launchers. Battle through the horde of vigilant robots, boost your character with the smoking remains of your victims, and defeat the master NeuroVoider.
- 4

Neon Abyss 2
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
Dive into the cybermyth roguelike chaos of Neon Abyss 2! Now featuring up to 4-player online co-op, more combat styles, and unlimited item synergies, every run delivers a dramatic, action-packed experience you won't forget.
- 5

Destropolis
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
Destropolis is a top-down shooter game with a fully destructible environment, hundreds of enemies and nuclear explosions. Fight a countless swarm of enemies. Tear them to pieces with bullets, lasers and explosions. Destroy as many of them as you can before they overwhelm you...
- 6

Royal Revolt Survivors
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
Unleash chaos in an electrifying 1-4 player co-op where survival and action-roguelite collide! Battle through relentless enemy hordes with a powerful mix of melee and ranged combat, navigating varied and dynamic environments.
- 7

UnderMine 2
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
Delve into the dangerous, ever-shifting labyrinth that is the Undermine. Discover, craft, and combine hundreds of unique items. Pair them with an ever-expanding roster of distinct playable characters for a new run every time! Grab a partner and uncover UnderMine 2's secrets together in local co-op.
- 8

Skewer Squad
Single-player alternative to Cosmic Tails — playable solo, no multiplayer required. Shares Action and Indie with Cosmic Tails.
Skewer Squad is a cute yet chaotic tower defense roguelite. Step into the apron of a Grillmaster, draft random ingredients, mix wild seasonings, and build a squad of skewers that are both delicious and powerful to defend your grill.