Single-player games like Alienautics
Below are 11 single-player Steam games similar to Alienautics, 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 Alienautics page.
Ranked picks
- 1

The Fixers
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
The Fixers is a third-person cyberpunk extraction shooter. Raid deadly city zones, loot rare tech, fight AI and rival mercs, and extract or lose it all. Upgrade your Hideout, take contracts from Fixers, and survive PvE or PvPvE runs to build your legacy.
- 2

Baldr Sky
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Adventure with Alienautics.
Kou Kadokura, a cyber officer, seeks to uncover the truth behind the tragedy that ended his once peaceful life. A war looms, and the answers he’s looking for are locked away in him... So why can't he remember anything? Unravel the mysteries hidden in his lost memories through this fast-paced mech action game!
- 3

Immortal: Unchained
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Adventure with Alienautics.
Unleashed and unforgiving. Can you rise to the challenge? Immortal: Unchained is the latest addition to the genre of ultra-hardcore action RPGs. Take the role of a living weapon, unleashed to stop the source of a cataclysmic event threatening to end all worlds.
- 4

Megamagic: Wizards of the Neon Age
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Prepare to delve into a fascinating world where the forces of technology and magic are embroiled in a vicious struggle! Blurring the lines between the RPG and strategy genres, Megamagic recaptures the unmistakable flavour of the 80s in a game magnified by the incredible music by Mitch Murder.
- 5

OUTRIDERS
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Adventure with Alienautics.
Outriders’ brutal and bloody combat combines frenetic gunplay, violent powers and deep RPG systems to create a true genre hybrid.
- 6

G String
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Slip into the Standard Issue Biosuit as Myo Hyori, a gifted Korean teenage girl who must face the perils of the future. Survive many hazards, explore a seemingly endless metropolis and beyond as the world around you implodes and history marches towards its inevitable conclusion.
- 7

Dex
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Dex is a 2D, side-scrolling, open-world cyberpunk RPG with a focus on exploration and non-linear gameplay.
- 8

ECHO
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
After a century in stasis the girl En arrives at her destination: A Palace out of legend. Out here, using forgotten technologies, she hopes to bring back a life that shouldn’t have been lost. But nothing could prepare her for what she’ll face in the ancient halls below.
- 9

Predator Simulator
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Predator Simulator is an action arcade RPG packed with endless gameplay and new missions for every game session. On a quest to become a true Lion born, you get to save the planet by wiping out humanity from the face of the earth. Yeah.... didn't you always want to do that anyway? Now is your chance!
- 10

Caribbean Odyssey
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Step into the epic adventure of the legendary pirate Captain Henry Morgan. Inspired by true events from 16th century, Caribbean Odyssey is a beautiful tale of loyalty, love, betrayal and revenge. Explore a lavish and colorful world of secrets in 2.5D.
- 11

Skynet Rising : Portal to the Past
Single-player alternative to Alienautics — playable solo, no multiplayer required. Shares Action and Indie with Alienautics.
Isaac spent most of his life serving under the vicious mutant rebel leader, Commander Crugo. Upon discovering a digital weapon of mass destruction, Isaac fears for humanity and flees with his wife and brother to keep the intel from falling into Crugo's hands. Seeking revenge for the betrayal, Crugo hunts down Isaac and destroys his life.