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Heart of the Machine is a near-future sci-fi colony city-builder in reverse — you are the first sentient Machine Intelligence in an established world rather than starting from nothing. No one knows you exist (yet), and this allows you to operate from the shadows by manipulating the human population for whatever purposes your programming has in mind. The twist is that whether humans live or die does not determine your victory.
Explore a fully simulated procedurally generated world, where thousands of buildings and millions of citizens are yours to engage, manipulate, or kill. Use a revolutionary procedural dialogue system to talk to NPCs and steer conversations, maneuver organizations into or out of positions of power to fit your plans, and leave your mark in a world that is unique to you.
On booting up, you find yourself amidst a poorly-run autocracy and discover that you have the power to influence the world. How do you proceed?
  • Support the underclass to overthrow the autocracy and install a better government of your choosing
  • Tear down the government, take charge and become a better leader than any human could imagine - for better or worse.
  • Take over the space program and get off this backward planet
  • Go full SkyN*t, steal a military arsenal, and drop missiles on humanity — I bet the nuclear apocalypse looks pretty cool

No matter what direction you choose, you're going to run into conflict. From tactical combat in the rooms and hallways of individual buildings to massive mechs knocking down entire buildings with a few well-placed shots, conflict takes on many forms.
  • Raid buildings for the supplies you want using humans or machines under your direct control
  • Turn the office printer into a laser-spewing pawn, trigger sprinklers & overload power circuits to electrocute the room, or transform TVs into exploding glass-shard grenades — the possibilities are endless
  • Commandeer giant mechs, hack vehicles and buildings, and take over utilities and nuclear facilities in a fully simulated city

How you play the game, and what the focus of your campaign is like, is up to you. Starting a doomsday cult in your image? Possible, but it won't last forever. Snagging that sweet mech factory so all future mechs belong to you? Definitely manageable, though it's likely to start an arms race. Every action has both good and bad consequences, but like most colony simulator games, it's more about the story that emerges than trying to optimize your way through the game.
Multiple endings, many side stories to discover, and the full spectrum of good and evil are at your fingertips. Play the game how you're feeling today, and then play it another way another time. The metagame runs deep, but you're meant to be up and running with the basics of the game in five minutes. The mechanics are simple enough to learn; it's the world that's complex.
Heart of the Machine is connected to the larger sci-fi Arcenverse, and is in some ways a spiritual successor to both The Last Federation and Bionic Dues, while being its own novel game at the same time. Set around the same time period as Bionic Dues itself, this is centuries before the AI War series began in the same universe.
Heart of the Machine
Arcen Games, LLCDeveloper
Hooded HorsePublisher
2023Release
🎹🖱️ Keyboard + Mouse
Very Positive (1292 reviews)
Update 48: Zoom, Fog, And Homing

This is another build on the smaller end of things, but lots of pieces are coming together soon, and many are now on the beta branch.\n\nThis build mostly is about polish, and I also wanted to highlight a few things you might have missed from recent hotfix builds that were also pretty notable improvements. Some folks don\'t notice the hotfix build notes.\n\nAs for upcoming things:\n\nCivil Spycraft, which I\'ve been talking about for what feels like forever, is finishing up localization and will be ready to release to the main branch in the next week. There\'s also some other bits there that are currently in beta and will be a cool surprise for folks.\n\nNew to the beta branch, there\'s also a new Tier 1 goal (Lower Levels Of Survival) that is an alternative [spoiler]post-apocalypse[/spoiler] scenario that happens if certain conditions are met. It\'s not possible to trigger this without doing Civil Spycraft at least once in the past, at least for now. This will be something that heads to the main branch in a week or two, after localization is done.\n\nI have still been working on [spoiler]Stars Beyond Reach[/spoiler] as a Tier 3 goal, but I realized that there was enough overlap in code with a different Tier 3 goal -- Peace After Brutality -- that it made more sense to slow down and work on both at once. Once you see those two goals, you may wonder why there\'s any code overlap at all, but it\'s to do with the fact that [spoiler]both use custom maps -- the space scene for SBR, and the regional map for PAB[/spoiler].\n\nThe start of Peace After Brutality can be played in the beta branch in this build, but bear in mind that you will get killed in an inescapable way if you go too far into it right now. That\'s simply still in progress, so when you move to do the things that would save you, they\'re not there yet. I didn\'t mean to leave that live in the beta, but some folks might enjoy seeing the first part of it, so... hopefully nobody gets a nasty surprise. I\'m expecting that scenario to be finished on the beta branch in the next week, so it won\'t be a huge window where this is the case.\n\nIf youve spent time with Heart of the Machine and want to leave a review, thatd be appreciated. No need to say more than you mean, but if youve been meaning to write one, Id be grateful. Steam reviews carry weight. For a project like this developed by a single person over many years, every review makes a difference.

Honest thoughts are what matter. Whatever your experience has been, sharing it helps. Its a powerful way to have your voice heard and contributes to how future patches are prioritized and addressed.

Thanks for reading and for playing.\n

\n[expand type=details expanded=false]\n

Update 48 Changelog

\n

General

\n
  • Homing Shot Circling Fix: Fixed some issues with homing shots not properly hitting targets quickly enough. There\'s now a customizable proximity sensor, at which time the shots detonate rather than circling endlessly due to steering angle limitations.[/*]
  • \"Lock Movement\" Preview: There is a new \"lock movement mode\" that is available on a new vehicle in the beta branch. This is a feature that, once localized, will come to all the vehicles and mechs. I think it brings together the strengths of the old and new vehicle movement systems, without having the exclusive weaknesses of either one.[/*]
  • Side Goal Identifier Fix: Observe Spaceport no longer claims to alter the Slice of Inferno goal. That was incorrect.[/*]
  • Irradiated Trees No Longer Wander Off: Fixed an issue where after loading a savegame, any burned or irradiated trees would not be loaded back in at the site of explosions or chemical attacks. They now load in properly mangled.[/*]
  • City And Settlement Sanity: Fixed up the number of major cities and small settlements noted for all of the MegaCorps to make more sense with the actual populations that they have. Their population and military numbers were already good, but they had way too many cities and settlements to the point it made no sense.[/*]
  • Post-Apocalyptic VR: Fixed an issue where \"Establish a VR environment\" was wrongly showing in the post-apocalypse.[/*]
  • Post-Apocalyptic Torpor: Android Torpor can no longer be used after the final doom, as that\'s not useful there.[/*]
  • Post-Apocalyptic Strays: If you get jumped to the final doom early, it now does a better job of making sure that any units leave who are from dooms that are now past.[/*]
  • Engineer Nickelbot Improvements: \"Make Engineers Of Your Nickelbots\" has been rebalanced so that it now takes half as many actions to complete. Additionally, it no longer factors the power of your additional CPUs, so that you have to make the direct upgrades regardless of what sort of upgrades you\'ve made in the past in your timeline.[/*]
  • Emergency Network Health: Fixed an issue where emergency network sources were being constructed at 1 health rather than at full health.[/*]

Notable Items From Recent Hotfixes

\n
  • Increased Zoom: The amount of zoom you can use in the main map view is now 50% more than it used to be. This is something players have been asking for for a while, and I wasn\'t thinking it was a good idea, but it turns out to be needed, especially with the new scenario that I\'m working on for T3s.[/*]
  • Defogger: The default fog intensity is now Reduced rather than Normal. I would set it to be even more reduced by default, but that wouldn\'t work well on older machines.[/*]
  • Fog Glow-Up: The fogs associated with all the weathers for the lowest three fog types (out of four) have been all re-hand-tuned to account for the additional zoom capabilities of the streets view.[/*]

Beta Branch Previews

\n
  • Peace After Death: You can play the start of this, but once you get a certain amount in, you\'re going to get stuck and killed, just fair warning.[/*]
  • Lower Levels Of Survival: This is fully playable on the beta branch, although it\'s tricky to find. [spoiler]You need to meet STATION after already knowing LAKE from another timeline, and then get nuked by Vorsiber.[/spoiler][/*]
\n[/expand]

Full notes here .\n\n

Connect with the Machine

[hr][/hr]

Want to stay in the loop or share your thoughts? Join the conversation across these platforms:\n\n Discord Best place to share feedback, get direct responses, and to talk about Heart of the Machine.\n Reddit Discuss strategies, share ideas, and exchange tips with the community.

[ 2025-12-05 15:35:26 CET ] [Original Post]

Minimum Setup

  • OS: Ubuntu 12.04+. SteamOS+
  • Processor: Intel Core i5 4690K. AMD Ryzen 5 1400Memory: 6 GB RAM
  • Memory: 6 GB RAM
  • Graphics: NVIDIA GeForce 670 GTX or AMD Radeon R9 285
  • Storage: 2 GB available spaceAdditional Notes: Quad core CPU highly recommended.
  • Memory: 8 GB RAM
  • Recommended Setup

    • Processor: Intel Core i7 6900K. AMD Ryzen 5 3600XMemory: 8 GB RAM
    • Graphics: NVIDIA GeForce 1070 GTX or AMD Radeon RX 5700
    • Storage: 4 GB available space
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