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

Alien Hostage
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Ready to give up? Ready to rage? In 'Alien Hostage' you must complete all challenges given to you by the human scientists who have trapped you on Earth.
- 2

Overcooked
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Overcooked is a chaotic couch co-op cooking game for one to four players. Working as a team, you and your fellow chefs must prepare, cook and serve up a variety of tasty orders before the baying customers storm out in a huff.
- 3

Game Dev Tycoon
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
In Game Dev Tycoon you replay the history of the gaming industry by starting your own video game development company in the 80s. Create best selling games. Research new technologies and invent new game types. Become the leader of the market and gain worldwide fans.
- 4

Diaries of a Spaceport Janitor
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Diaries of a Spaceport Janitor is an anti-adventure game about picking up trash in an alien bazaar. Play as the Janitor, an Alaensee girlbeast with a municipally-subsidized trash incineration job and dreams of leaving the planet of Xabran's Rock far behind her.
- 5

Plebby Quest: The Crusades
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
Survive ambitious rulers dreaming of an empire, outsmart treacherous neighbors longing to burn your spoils, and navigate the religion’s predictably unreasonable demands; you need ask only one question as you build your legacy – “Will you burn them, or be burnt?”
- 6

Goat Simulator
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Goat Simulator is the latest in high-tech Goat Simulation technology.
- 7

Human Resource Machine
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Program little office workers to solve puzzles. Be a good employee! The machines are coming... for your job. From the creators of World of Goo and Little Inferno.
- 8

911 Operator
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Simulation with Cosmic Pioneer.
Game about the difficult work of people that manage emergency lines and services. Answer incoming calls and react properly - give first aid instructions, advise, dispatch correct number of firemen / police / ambulances, or sometimes - just ignore the call. Play on ANY CITY in the world!
- 9

1914: Prelude to Chaos
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required.
Enter the year 1914, which will mark the beginning of the Great War. This Indie adventure RPG will show you the glory of dying empires, death, despair and chaos that hasshaken the world and finally put an end to the ancient European monarchies.
- 10

Unforgiving Trials: The Darkest Crusade
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
Embark on an epic adventure to save the lands. Form a party by selecting 4 different adventurers from a pool of over 12 unique classes. Battle your way through the cursed lands scaling the highest mountains and exploring the darkest dungeons. Face more than 30 unique challenging bosses in order to reach the capital of the kingdom.
- 11

A Detective's Novel
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
On a cold November night in a desolate estate deep in the mountains an innocent life has prematurely perished and its up to the player to find out who did it.
- 12

Unforgiving Trials: The Space Crusade
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
The world is dying. Many years after the banishment of the evil that plagued the land, the world was hit by waves of unbearable heat. Now in order to save the world the band of young adventurers have set upon a quest to vanquish the Sun.
- 13

Nuclear Contingency
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
Nuclear Contingency is a top down action stealth game set during the height of the cold war.
- 14

Space Beret
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Casual with Cosmic Pioneer.
Space Beret is a top down sci-fi shooter set in a "Starship Troopers" and "Crimsonland" inspired setting. In it, mankind is forced to fight hordes of horrible monstrosities in a desperate struggle for survival.
- 15

The Last Sin
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie with Cosmic Pioneer.
The world is stuck in permanent limbo where the living don't realize what is going on and the dead cannot rest. Recruit a party of balanced heroes to save the endless plane of existence.
- 16

Introvert Quest
Single-player alternative to Cosmic Pioneer — playable solo, no multiplayer required. Shares Indie and Casual with Cosmic Pioneer.
Introvert Quest is a comedy based JRPG set in a fictional, modern setting. Experience the life of a socially awkward shut-in who is pushed into herculean tasks by his therapist.