Single-player games like Heat Signature
Below are 19 single-player Steam games similar to Heat Signature, 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 Heat Signature page.
Ranked picks
- 1

FTL: Faster Than Light
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Strategy and Indie with Heat Signature.
This "spaceship simulation roguelike-like" allows you to take your ship and crew on an adventure through a randomly generated galaxy filled with glory and bitter defeat.
- 2

Crying Suns
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Strategy and Indie with Heat Signature.
Crying Suns is a tactical rogue-lite that puts you in the role of a space fleet commander as you explore a mysteriously fallen empire. In this story rich experience inspired by Dune and Foundation, each successful run will uncover the truth about the Empire... and yourself as well.
- 3

Void War
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Strategy and Indie with Heat Signature.
Command an ancient starship and fight your way to the heart of a dying Empire. Fend off attacks from demented cultists, craven space pirates, and xenophobic Imperial soldiers. Discover powerful artifacts and use them to build your ship into a fearsome war engine.
- 4

Corpoct
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
Test your wits as well as your ability to lead an expedition in this deep space dungeon-crawler. Hire the best heroes and villains of the galaxy. Find unknown planets in uncharted space. Start small, plan big and get a fleet of warships capable enough to rival most fearsome enemies.
- 5

Invisible, Inc.
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
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.
- 6

Not The Robots
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
You are a robot in an office building. You have to eat furniture and not get caught. A mysterious story unfolds.Not The Robots is this year’s most exciting Roguelike Stealth Furniture Eating Simulator. It’s a game with random levels, permadeath, and the goal of eating furniture - which is also your stealth cover.
- 7

CRYPTARK
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
Cryptark is a 2D sci-fi shooter where you take on the role of a heavily armed privateer seeking to earn government contracts by boarding deadly alien space-hulks. It's up to you to strategize a plan of attack, pick an equipment loadout, and destroy the central core to be victorious.
- 8

Voidship: The Long Journey
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
Design your battleship and fight your way through unforgiving space. This is a tale of a lone spaceship on a centuries-long mission. As the captain, you´ll make strategic decisions, explore unknown sectors, meet allies and enemies, gather resources, technology and crew. To battle stations!
- 9

Tactical Breach Wizards
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Strategy and Indie with Heat Signature.
In Tactical Breach Wizards, you lead a team of renegade wizards in kevlar through turn-based battles to unravel a modern conspiracy plot. Combine their unique spells in clever ways, or rewind time to try every crazy plan you can think of to punch a Traffic Warlock through a 4th story window.
- 10

Noita
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Indie with Heat Signature.
Noita is a magical action roguelite set in a world where every pixel is physically simulated. Fight, explore, melt, burn, freeze and evaporate your way through the procedurally generated world using spells you've created yourself.
- 11

RONIN
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Indie with Heat Signature.
Ronin is stylish a turn-based action platformer following the exploits of a vengeful heroine determined to strike down five prominent figures of a powerful corporation.
- 12

DEADBOLT
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Indie with Heat Signature.
DEADBOLT is an extremely challenging stealth-action hybrid that allows you to take control of the reaper to quell the recent undead uprising.
- 13

Hotline Miami
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Indie with Heat Signature.
Hotline Miami is a high-octane action game overflowing with raw brutality, hard-boiled gunplay and skull crushing close combat.
- 14

SUPERHOT
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Indie with Heat Signature.
SUPERHOT is the smash-hit FPS where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's you, alone, outnumbered and outgunned. Snatch weapons from fallen enemies to shoot, slice and dodge through a truly cinematic hurricane of slow-motion bullets.
- 15

Hardspace: Shipbreaker
Single-player alternative to Heat Signature — playable solo, no multiplayer required.
Equipped with cutting-edge salvaging tech, carve & slice spaceships to recover valuable materials. Upgrade your gear to take on more lucrative contracts and pay your billion credits debt to LYNX Corp!
- 16

RimWorld
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Strategy and Indie with Heat Signature.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 17

Gunpoint
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Action and Strategy with Heat Signature.
Gunpoint is a stealth puzzle game that lets you rewire its levels to trick people. You play a freelance spy who takes jobs from his clients to break into high security buildings and steal sensitive data.
- 18

Morphblade
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Indie with Heat Signature.
In Morphblade you move around a grid slicing, smashing and bursting waves of nasty red bugs. Each tile you move to transforms you into a different weapon: on a Blades hex you can slice enemies on either side of you, on an Arrow you can launch yourself through two enemies in a row.
- 19

Floating Point
Single-player alternative to Heat Signature — playable solo, no multiplayer required. Shares Indie with Heat Signature.
Floating Point is a peaceful, free game about using a grappling hook to swing yourself gracefully through randomly generated spaces. The only objective is to collect points, and the only thing that increases your points is swinging swiftly, smoothly and elegantly without hitting anything.