Heat Signature is a game from the developers of Gunpoint where you break into spaceships, make terrible mistakes, and think of clever ways out of them. You take a mission, fly to the target ship, sneak inside, and make clever use of your gadgets to distract, ambush and take out the crew.
Recent Reviews:
Very Positive (84) - 88% of the 84 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (3,348) - 93% of the 3,348 user reviews for this game are positive.
Release Date:
Sep 21, 2017

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Recent updates View all (33)

January 14

New Patch: 2019.1.10.1

We've uploaded a new patch, here's what's changed:

  • Fix guards unable to carry player's body to some airlocks.
  • Fix Offworld Angel's shop description.
  • Potential fix for getting stuck in mission end screen.

  • Added player rank and count to Daily Challenge leaderboards.
  • Fixed pilots with heat sensors not detecting player.
  • Fixed guards knocked out by pod undocking not counting against totals.
  • Fixed crash when teleporting an item immediately after exitting a ship.
  • Fixed Restockable Breach Grenade Launchers losing the Restockable trait. (Doesn't fix items already affected.)

If you have problems with any patch, please fill our our Bug Report Form to let us know what went wrong!
9 comments Read more

December 21, 2018

Space Winter is back, there's a patch, and a sale!

Each winter, until the 31st of Space December, the Voidmother encroaches on this dark corner of the galaxy, and we all stay close to home and swap random objects with our Steam friends via industrial gift chutes. We also have a new patch that'll help more folks get into the Daily Challenge, and experienced Challengers have a smoother time. And we're half-price!


Introducing Easy Sundays
On Sundays, the daily challenge is easier. Normal daily challenges are Hard > Hard > Mistake. Easy Sundays are Medium > Hard > Hard. Perfect performances still get a time bonus, so for more experienced drifters this will be a test of your speedrunning skills.

Rethinking Technophobe
The Technophobe trait used to give gadgets a chance of breaking each time you used them. It's one of the harshest traits, and randomness played a big part in it, which wasn't great for Daily Challenges where you're all supposed to be on equal footing. So now, Technophobes never break gadgets - but they also can't recharge or self-charge them. However many uses they have, that's all you'll ever get. If you pass the item on as an heirloom or gift, it'll work fine for non-Technophobes.

Rarest Items Less Rare
Unique items are now more common in crates: was 1%, now 2%.
Exceptional items are also more common in crates: was 2%, now 4%.
Added a line to the Living Legends screen that reports how many unique items are owned by your active characters, and how many are still available to find.

Catch Everyone You Care About
Any time you have a mission- or vow-related reason to need guards alive, you can now catch them in your pod just like your target. We've also fixed some cases where guards (and you!) could get sucked into space by a window breach at a time that didn't make sense, so the situation should come up less!

Space Winter details

Drift Gifts!
For the duration of Space Winter (21st to 31st of Space December), you can use the objective delivery chute and choose one item (per day) to give to your Steam friends.

Equally, you may see a 'Gift!' annotation on your stash. Look for an item with pink text: it's a gift from a friend. If you don't have any friends, or your friends are allergic to space or fun, you'll still get a random present from the citizens of the Drift once a day.

Stay Home!
Space Winter is a season for friendship, giving, and staying home so the Voidmother can't take your mind. In Space Winter, those who stray too far into the cold... they come back, but they come back wrong. Spending some time at the bar may help.

The Voidmother isn't real, of course, she's just a ridiculous story made up by people whose minds were taken by the Voidmother.

Sorry About The Colours!
Against vital safety protocols, independent stations have chosen to modify their long range beacon lights to emulate 'festive', or 'ugly' colours. Thousands will die in collisions caused by the reduced visibility.

Other Patch Notes
  • Sentry guns are now crashed by opposing Jammer Devices.
  • Added Replacement Pod to Daily Challenge shop.
  • Fixed a bug that may have made the Valentines weapons rarer than intended.
  • Fixed forcefields continuing to suck when player re-boards a ship.
  • Fixed occasional mission failure when destroying path to teleporter on 'Target Flees' missions.
  • Fixed crashed guards sounding alarm when they recruit other guards to investigate.
  • Fixed unable to select melee weapons as favourite items for Weak characters.
  • Selecting a new character while guards are asphyxiating in space no longer counts kills against new character.
10 comments Read more

Supporter's Edition

The Supporter's Edition of Heat Signature comes with a bunch of fun extras:

  • Play through Heat Signature's development with 8 early prototypes from its 3.5 year development.
  • Watch 9 developer commentary videos showing and explaining its evolution: from drilling through hulls to liberating empires. (Total: 70 minutes)
  • Own the full soundtrack in 320kbps MP3 format. (19 tracks, 83 minutes)

About This Game

Break into spaceships!

Fly your pod up to any spaceship in the galaxy and dock with its airlock to sneak inside. From there, you've got to sneak up on the crew, outshoot them in slowmo gunfights, or outthink them with clever gadgets. Take missions to steal loot, assassinate VIPs, or rescue friends.

Take your time!

Get out of impossible situations by pausing at any time and taking as long as you need to figure out a clever plan. You have a wide range of gadgets with clever uses, and you can switch, aim and fire them with no time pressure at all, letting you pull off ridiculously cool tricks without needing twitch skills.

Liberate the galaxy!

All your missions get you closer to liberating new space stations from the empires that control them, and this unlocks new gadgets to buy in your shops, and special challenge characters to play.

Lots more features!
I'm not making GIFs for all these!
I'm not made of GIFs!
I'm not some kind of GIF-golem!

Emergent gameplay!

Use gadgets like teleporters, stealth shields and subverters to invent your own solutions to tricky situations.

Galactic zoom!

Zoom smoothly from a view of the whole galaxy down to your character sneaking up on guards inside the spaceship you're boarding.

Choose your difficulty!

You choose each mission, ranging from trivially easy to nightmarishly hard. There's also a practice mode where you can try items and tactics with no consequences and instant-restart.

Randomly generated missions!

Each one picks a random combination of guard kit, ship layout, and complications like space battles.

Each life is a new character!

Choose between randomly generated characters with different starting kit, and when you die, play as someone new in the same galaxy.

Personal missions!

Every character has one grand heist to work towards: rescue their brother, steal their gun back, get revenge on their partner's killer.

Modular destruction!

Blow up any part of a ship with breach grenades or fuel barrels. Rip a ship in half. Get sucked into space by the vacuum.

Rescue your friends' characters!

If someone on your friends list gets their character captured, and they aren't able to rescue them, maybe you can! You'll sometimes get a character whose personal goal is to rescue a friend's character. If you manage it, you unlock your friend's character to play as! They don't get it back. They had their chance. It's yours now.

Find your friends' items!

When you retire an accomplished character, you can choose one item to pass on. You get to name it, and both your Steam friends and your own future characters have a chance to find these as loot. Equally, you'll come across items your friends have named.

What Heat Signature is not:

We don't want you to buy Heat Signature if it's not for you. We'd always rather have a happy non-customer than an unhappy customer. So here's what it isn't:


  • It's not story-driven: there's a backstory to this place and a few conversations with characters, but there's not a story that develops as you play. It's much more about the stories you generate by playing, about how you got out of impossible situation X or pulled off crazy stunt Y.

  • There aren't other careers: You can't mine asteroids. You can't build ships. You can't recruit a crew. You're an infiltrator, you break into spaceships for a living, it's all about that.

  • There are no planets: The whole game takes place in this nebula full of space stations. You can dock at any friendly station and board any hostile ship, but it's not a space exploration game.

  • It's not multiplayer: The friends features mentioned above are fun but they're just sharing content, it's not multiplayer at all and you're never in the same world together.

There are cool games about all those things. This is a cool game about something else!

System Requirements

    • OS: Windows 7
    • Processor: 1.7GHz dual-core CPU
    • Memory: 8 GB RAM
    • Graphics: Intel HD 5000 or better (GeForce and Radeon tend to be better)
    • DirectX: Version 9.0
    • Storage: 400 MB available space

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