Single-player games like Tharsis
Below are 17 single-player Steam games similar to Tharsis, 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 Tharsis page.
Ranked picks
- 1

Terraformers
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy with Tharsis.
Terraform Mars in this turn-based colony builder and resource management game with roguelike elements. Explore the planet, develop spectacular cities, spread life and turn the Red Planet into a green one!
- 2

Darkest Dungeon®
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
Darkest Dungeon is a challenging gothic roguelike turn-based RPG about the psychological stresses of adventuring. Recruit, train, and lead a team of flawed heroes against unimaginable horrors, stress, disease, and the ever-encroaching dark. Can you keep your heroes together when all hope is lost?
- 3

Invisible, Inc.
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
Take control of Invisible's agents in the field and infiltrate the world's most dangerous corporations. Stealth, precision, and teamwork are essential in high-stakes, high-profit missions, where every move may cost an agent their life.
- 4

NEO Scavenger
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
NEO Scavenger is a game where you must survive in the wasteland long enough to figure out who you are. Each turn, you must decide where to go, how to scavenge for supplies, and how to deal with anything and anyone you encounter.
- 5

Deep Sky Derelicts
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
Deep Sky Derelicts is an original combination of turn-based strategy and RPG, enriched with tactical card combat and popular roguelike elements. Explore derelict alien ships, fight, loot and upgrade your gear, all in distinctive retro-futuristic comic book aesthetic style.
- 6

Teleglitch: Die More Edition
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
In a cold, dark future dominated by mega-corporations, a small lonely planet on the edge of habitable space is the site of a shadowy research facility specializing in necrotic tissue reactivation. You are a scientist who has suddenly awoken to the realization that you are the lone survivor.
- 7

Sword of the Stars: The Pit
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
A fun, fast, light-hearted, turn-based RPG, where the tradition of old school dungeon-diving games meets the sci-fi Sword of the Stars universe!
- 8

Trials of Fire
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy and Indie with Tharsis.
A Tactical, Deck-Building Roguelite. Choose 3 Heroes and adventure into a post-Cataclysmic wasteland. Engage enemies in a unique meld of card-play and tactical, positional combat. Level up and scavenge what you can to customise your decks and build a party to take on any challenge!
- 9

Space Hulk: Tactics (Classic)
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Strategy with Tharsis.
Space Hulk: Tactics is a faithful adaptation of the board game Space Hulk, set in the Warhammer 40,000 universe, bringing a unique twist to the cult classic formula. Engage in bloody battles as either a squad of Terminator Space Marines or the deadly alien Genestealers.
- 10

Hextech Mayhem: A League of Legends Story™
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
In this fast-paced rhythm runner, every action has an explosive reaction and no amount of mayhem is too much. Take on the role of Hexplosives expert Ziggs as you rampage through the neighborhoods of Piltover!
- 11

BIT.TRIP RUNNER
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
Experience the rhythmic thrill of BIT.TRIP RUNNER! With its retro charm, simple controls, and award-winning visuals, this classic sets the standard for rhythm gaming. Don't miss the game that started it all in the acclaimed runner series.
- 12

BIT.TRIP RERUNNER
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
The classic rhythm platformer is back as BIT.TRIP RERUNNER + RUNNER MAKER! The fun of the original now sports fresh mechanics, art, and soundtrack – plus RUNNER MAKER, which allows you to create custom levels. A must-play for rhythm newbies, experts, and everyone in between.
- 13

Runner3
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
CommanderVideo returns in Runner3's heart-pounding saga! Conquer villainous villains, drive wild vehicles, and navigate thrilling environments. Meet quirky characters and face retro challenges for an adrenaline-soaked rhythm-music platformer adventure!
- 14

Laserlife
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
Remember what it means to be a human in this interactive biography of a dead astronaut found in deep space by future intelligences who have no concept of humankind.
- 15

Bubsy: Paws on Fire!
Single-player alternative to Tharsis — playable solo, no multiplayer required.
From the developers of the BIT.TRIP series comes Bubsy: Paws on Fire!, the latest and greatest in bobcat-based gaming.
- 16

Word Warrior: Zombie Typocalypse
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie and Casual with Tharsis.
Defeat zombies with creativity! "Word Warrior: Zombie Typocalypse" is a wacky word-based rail shooter. Type anything you can think of to fight off the zombies and top the global leaderboard. Replay for bigger rewards but face deadlier zombies!
- 17

Breakout Beyond
Single-player alternative to Tharsis — playable solo, no multiplayer required. Shares Indie with Tharsis.
Breakout is back! In this neon-drenched take on the classic, you’ll need to literally break through each puzzle by clearing bricks to breach the final goal. Rack up a combo and create spectacular light shows alone or with a friend.