


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.
There\'s a tradition in Arcen titles that we\'ve had a high-ranking difficulty level known as Misery. It\'s not in all our titles, but most of them. If you asked me a month ago if this game would have a Misery Mode, I probably would have said no.\n\nThe thing is, in today\'s earlier build, I relaxed a few things in the late game that were punishingly difficult. That made most people very happy, but it made a few people a bit sad. They were very polite about it, but they liked that... \"this is agonizing and takes forever, and you have to minmax like crazy, and you wonder if it\'s even mathematically possible\" sort of challenge. To me, that sounds absolutely miserable, and that\'s probably true of most people reading this.\n\nSo: we now have Misery Mode. That allows me to keep those sorts of challenges in the game, for the few people who want them, while balancing Extreme Mode to be something that your average advanced strategy player can probably handle. There are no achievements tied to Misery Mode, and there won\'t be in the future. However, it does track which ones you\'ve done in the game, since of course it should. As a developer, I don\'t want you to play Misery mode unless it calls to something deep inside you. It\'s not part of being a completionist -- it is actively un-fun unless you\'re the sort of person who inherently hears its siren call.\n\nI\'m releasing this out to everyone now so that it can get more testing from the people who want to use it. The controls related to it are in English only for now, but the actual content is in all the languages the game is in.\n\nFor most of you, you can just be glad that the truly sadistic balance falls into this alone. For those who are interested in this mode, a lot of them are clustered on the discord for the game, so if you have ways you want me to make it even more painful in this mode, I don\'t mind.\n\nMy main focus for the next few weeks is still going to be on Tier 3 goals for everyone, but once I\'m past the content sprint, I\'ll be doing various polish, and can also throw in some extra horrible stuff for this mode if there are spots where that would be welcomed.\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]\nUpdate 57 Changelog
\nBalance Fixes
\n- Balance Implosion: Fixed an issue where players were getting 6000 extra dark matter particles and Novichok-17 if they started a new city. Players are only meant to have 255 at most, so for now I\'m leaving that consistent across difficulty levels, and we\'ll see what happens.[/*]
- Dark Matter Storage: The storage of dark matter particles has been dropped to 255 to make it so that existing saves that were having the inflated numbers can now be re-attempted with real numbers.[/*]
Misery Mode
\n- A New Difficulty Level Above Extreme: This is not meant to be fun for most people. It\'s meant for the extreme min-maxers who like playing AI War on difficulty 10. The name of this mode is not an accident.[/*]
- The Stat Changes In This Mode: Morale and Systems Integrity are multiplied by 3.6x on misery mode, compared to the 2.8x on extreme mode (or 1.4x on hard mode). Unit squad sizes are 3.8-4.2x in Misery mode compared to 3.1-3.6x on extreme mode (or 1.5-1.8x on hard mode).[/*]
- Other Insanity: Fighting the citizen advocates requires you to defeat more of them on misery mode. Even more ships appear in Stars Beyond Reach on misery mode.[/*]
- \"Peace After Brutality\" Is As Brutal As Possible: In Peace After Brutality, you need 8 million fedcorp unrest rather than the 6 million on extreme. Also here, the number of squads spawning in are roughly equal to what they were in extreme mode before the nerf. Not completely correct, but... close. This is offset by the fact that you have a proper number of dark matter particles now.[/*]
- Mark 6 Mechs: The game now includes Mark 6 mechs exclusively for Misery Mode. These are 1.32x stronger on all the main stats compared to their Mark 5 counterparts. However, their armor piercing is not increased at all unless that would be lower than their armor plating, in which case it\'s increased only enough to cover that. In practice this means a bit of an increase for the machinist and convictor, but not at all for the other ones.[/*]
- No Achievements For This: There are no achievements for misery mode, but it does track your prior wins on misery mode in your profile. If you beat a goal on misery mode, then it also counts for extreme and hard, and gives you those achievements. Achievements for this mode would be cruel.[/*]
- Cross-Timeline Resource: A new Misery resource has been added to the game. You gain +1 for any Tier 1 goal or side goal, +2 for any Tier 2 goal (no that\'s not fair), and +3 for any Tier 3 goal (even less fair). This is not shown on the top bar unless you\'ve ever gained some. The amount you\'ve gained across timelines, and in a specific timeline, are both tracked.[/*]
Destroying Timelines
\n- Destroyer Lens: This new lens allows you to delete timelines that you no longer want to keep (typically this should only be done in some pretty rare cases, honestly). This costs either 1000 Aetagest, or 1 of the new Misery resource.[/*]
- Sensible Constraints: To prevent your profile from getting stuck, you need either 1100 Aetagest on hand, or 1 Misery and 100 Aetagest on hand, when you do the deletion. You can\'t delete the timeline you\'re in right now, nor can you delete your first timeline.[/*]
- Loading Saves From Deleted Timelines: After deleting a timeline, no savegames from that timeline can be loaded as part of the profile. If you copy them to another profile, then they can be loaded (usually for bug report purposes or similar).[/*]
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.
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.
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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