Release Notes - Belts of Iron

v0.4.0 Aug 4, 2026

Cargo Drones added, flying robots that carry items between designated storage containers.
Drone Depots added, where drones automatically pick up requests and recharge.
Storage containers can be set to request or provide items to drones.
When placing railway tracks there is now a blue line showing connected tracks. It should make finding broken segments easier if the line stops where you don't want it to.
Increased speed of Mk3 and Mk4 conveyor belts.
World Map added, toggle with [M] to view the world map.
Shows terrain and resource deposits nearby.
Shows foundations, belts, pipes, and train tracks to help visualize the factory at a high level.
Vertical Conveyor Lifts, for moving items straight up and down.
Vertical lifts attach directly to machines, splitters, and mergers.
Each belt tier has a matching lift running at the same speed as its horizontal counterpart.
New Steam Turbine model.
Stone Brick added as an early game building material.
Steel Frame added as a late game building material.
Flood Light added to light up areas of your factory.
Logic Circuits and Execution Units are no longer used as modules but ingredients in these new modules.
Productivity Modules added, output a bonus item every so often.
Efficiency Modules added, reduce the energy used by a machine.
Speed Modules added, increase crafting speed at the cost of more energy.
Modules can be mixed and matched, with slot counts varying by machine.
More end game items added, making launching a rocket more rewarding.
End game data pack added with new research.
Tech tree areas reorganized to make room for the expanded end game and new items.
Tech Tree visuals improved.
Autosave now writes to reserved 'autosave' files and will not overwrite your manual save files.
Saving the game will prompt you to choose which file to save as. Allowing you to more easily save copies of your world.

v0.3.17 Jul 1, 2026

Add setting for picker/pipette tool to not replace items on your hotbar.
Added a visual indicator if you get close to the world boundary.
Fixed a bug where resource deposits could have negative amounts preventing extractors from working.
Fixed a bug where players could not select train station in the locomotive UI if there were too many.
Fixed a bug where pipe valve max flow rate was not saved.

v0.3.16 Jun 5, 2026

Fix crash after dismantling oil refinery.
Fixed nudging non-world-grid blueprints when rotated (need to recreate the blueprint for this to fix it).
Add flow rate to pipe tooltip.
Update tech tree visuals.
Update fluid icons.
Fixed derailed trains would fall through the world.
Fixed a bug where concrete and the world grid indicators would sometimes disappear in multiplayer.
Removed the white flashing when damaging resources.

v0.3.15 May 30, 2026

Insulated Wire should now correctly be 3x longer than Copper Wire.
Fixed a bug preventing belts and pipes from going through water.
Fixed a crash when opening the research table in multiplayer.
Fixed world names with a dot character not saving correctly.
Fixed splitting certain railway tracks with another track caused them to freak out.
Updated fluid icons to better match the color in game.

v0.3.14 May 28, 2026

Updated some text in game to show that it is now available on Steam!

v0.3.13 May 26, 2026

Improved render performance with LOD for concrete foundations and belts.
Improved render performance by not rendering items on belts that are far away.
Fixed a crash when interacting with locomotive after a station on the schedule was removed.
Removed research speed technology in favor of using modules in the research labs.

v0.3.12 May 19, 2026

When scanning for resources the location of deposits should not overlap one another as much.
Rails, stations, signals, and loaders can now be used in blueprints.
Add toggle for world grid [G] when placing foundations.
Blueprints can now include icons and descriptions.
Blueprints can now snap to world grid making them easier to align.
Changed the following recipes:
[Plastic] Plastic: 1 -> 2
[Cement] Slag: 2 -> 4, Time: 3 -> 2
[High Density Plate] Steel: 10 -> 8, Time: 8 -> 12
[Pure Iron Ore] Crushed Stone: 2 -> 3
[Pure Copper Ore] Crushed Stone: 2 -> 3
[Acid] Water: 120 -> 30, Acid: 120 -> 30
[Silica] Acid: 50 -> 30
[Rocket Launch] Rocket Engine: 16 -> 8, Pipe Valve: 50 -> 45

v0.3.11 May 13, 2026

New Assembler animation and particle effects.
Fixed a bug where placing splitters could snap to a belt behind another machine
Updated Saved Games Menu to show more information.
Allow players to quit without saving. There is a confirmation dialog if you haven't saved recently.
Added setting to change autosave interval.
Fixed a bug that prevented some buildings from being placed on foundations in seemingly random locations.

v0.3.10 May 12, 2026

Added more details to electrical network graphs including machine counts and total energy use for each group.
Updated Launch Pad UI and increased power usage to be more appropriate for an end game building.
Steam turbines now remember their speed between saved games.
Accumulators now remember their charge level between saved games.
Fixed a bug where removing the last machine in a power network would not remove the power network leading to a random crash later.
Fixed a bug where Accumulators did not show on blueprints.

v0.3.9 May 6, 2026

New factory modules system! Use Logic Circuits or Execution Units to boost the speed of machines at the cost of higher energy use.
Logic Circuit & Execution Unit stack size changed from 50 -> 10.
Removed mining speed technology 2-4 in favor of using modules in mining drills.
Fixed a bug with train path signals not working correctly.
Added level of details to trees and rocks to improve graphics performance.

v0.3.8 Apr 30, 2026

Added on screen alerts when machines are being attacked/damaged.
Factory machine health now persists between saving and loading.
Added Repair Kit item to repair damaged machines.
Changed Tactical Data Pack to require steel.
Fixed bug where research labs would continue working without power.
Fixed bug not always showing floating damage numbers in multiplayer.
Fixed bug where fluid extractors on water would not resume from a save game until the player got close.

v0.3.7 Apr 24, 2026

New Research Lab model, slightly smaller than before.
Conveyor belts can now be built "backward" starting from a machine input or another belt.
Fixed railway track collisions not lining up exactly with the model.
Fixed train schedule pass condition not updating in the menu.

v0.3.6 Apr 21, 2026

BREAKING CHANGE: Starting player inventory has been decreased. Any items over the current limit will be placed in a chest when you load an old save.
New: Research to upgrade the base amount of jetpack fuel.
New: Research to increase the number of inventory slots.

v0.3.5 Apr 20, 2026

BREAKING CHANGE: Belts and pipes placed from blueprints made prior to this version won't visually connect but should still operate ok.
Lots of multiplayer improvements and network optimizations.
Reworked how belts, pipes, and train tracks are saved and loaded to improve performance and extendability.
Trains should no longer randomly kill the player while riding on it.
New: Fluid indicators when building pipes to see what fluids go in/out of ports on machines.
New: Pipe Valves - add to a pipe and set max flow rate to limit flow in one direction.
New: Fluid Wagon - new train car for transporting fluids, can be loaded or unloaded with existing transfer stations.
New: Large Storage - new larger storage building with 2x more capacity.
Shrunk the size of the storage container to be a little smaller in the world so larger container feels bigger.
Changed rocket launch recipe.
Changed belt & pipe input locations on launch pad.

v0.3.4 Apr 10, 2026

Trains can now be driven manually in addition to automatic/self driving of the scheduled routes.
Trains can now collide with one another and derail.
Trains can now damage the player or even killing them if travelling at high speeds.
Block & Path Rail Signals can be placed on tracks to control when trains can entering sections of track.
Cargo Wagons now show what they are carrying (currently limited to 1 item type).
Added particle effects to cargo loading station showing when items are being loaded onto trains.
Fixed some bugs and crashes related to dismantling trains.
Cargo Wagon capacity reduced from 20 slots to 16.
Known Issue: Even though you can place Locomotives facing the opposite direction, a train will not use it to find a valid path.

v0.3.2 Mar 24, 2026

Added new enemy type: The Needler, a small creature with a dangerous ranged attack.
You can now drag power poles when building wires. Just keep holding the mouse button and when the wire is too long a pole will be placed.
When building a Splitter or Merger on a belt you now need another belt of that type in your inventory to place it. (Removes the free belt you would get otherwise).
Added buttons to drain fluids from pipes and storage tanks.
Separate recipes by category to find items more easily.
Increased max pipe distance.
Recipes show what buildings they are crafted in (some oil/fluids might have changed if I missed something).
Updated research cost for mining speed and railways.
Updated build cost and build time for railway tracks and crushed stone.
Fixed a bug where belt and pipe supports would not show after placing a blueprint.
Fixed a bug where some trees/rocks would respawn after being destroyed.

v0.3.1 Mar 21, 2026

Blueprints can now be saved and loaded between sessions.
Added sound effects and visual effects when placing a blueprint.
Placing a splitter or merger will now automatically connect to adjacent belts when aligned correctly.
Dismantle and blueprint selection modes simplified to Multi and Box select only.
Reduced player interaction range from 30m to 10m.
Fixed a crash when loading a game before the main menu world finished generating.
Fixed inverted jungle tree mesh.
Fixed collision bounds of the Constructor, Pipe Supports, and Oil Refinery.
Fixed a visual glitch on the underside of belts.
Prevent splitters/mergers from being placed too close to the start or end of belts.

v0.3.0 Mar 15, 2026

Lots of changes to recipes, research, and machines. Start a new game for the best experience.
Resource deposit spawning revamped: Deposits now cluster by type, making dedicated mining outposts more rewarding.
Ferrocrystals dropped by enemies can now be harvested automatically with mining drills after destroying the hive.
Added new late-game Bucket Miner. It mines ore 4x faster than the Electric Mining Drill but consumes significantly more power.
Added Solar Panels: Generates up to 25 kW in clear weather, with reduced output in clouds or rain.
Added Accumulators: Store excess solar energy for use when output is low or demand spikes.
Added Power Network Graphs: open any power pole to view electricity consumption and production history.
Added new end-game mission: Build and launch a rocket into space 🚀
Added Chemical Plant machine for mixing complex fluids.
Added Steel Power Pole with increased connection count.
Added Tier 4 Belt.
Added Ore Washing to extract bonus iron and copper ingots.
Added Pipe Valve to limit fluid flow rate.
Rewrote the fluid simulation.

v0.2.6 Feb 27, 2026

Added an Array mode to Concrete to build up to 10x10 at once.
Changing or resetting a keybinding will now correctly remove the previous binding.
Increased range of dismantle tool slightly.
Increased Mining Speed 2 from 50% to 100%.
Iron Plate recipe now only needs 1 Iron Ingot.
You can now use the pipette tool (middle mouse button) while dismantling.
Fixed a bug where inventories in multiplayer could get out of sync.
Fixed pipe support heights not lining up.

v0.2.5 Feb 25, 2026

Lowered chance of poor weather so it will be sunny more often.
Fixed bug where steam turbine would generate electricity from any fluid instead of just steam.
Fixed a crash related to building power cables.

v0.2.4 Feb 22, 2026

You can now lock [H] and nudge some buildables before placing.
Added a new Blast Furnace model with animation!
Steel recipe duration increased from 3 to 5 seconds.
Machines with multiple outputs will do a better job putting each product on the same belt.
Minor updates to some UI elements.
Fixed an issue where pasting blueprints would not have collisions.

v0.2.3 Feb 18, 2026

Now showing other player names on the compass.
Fixed some sounds being heard by players far away.
Onboarding now shared by all players in a world.
Added a flashlight [Y].
Fixed a couple multiplayer crashes.

v0.2.2 Feb 17, 2026

Added multiple modes to dismantle tool: Single, Multi, and Box Select. Single works as before but hotkey changed to right mouse click. Multi Select works similar to using Ctrl before. Box Select lets you click and drag over an area.
Removed limit from dismantle tool.
Added copy & paste tool [B] with Multi Select and Box Select modes.
Electric Mining Drill recipe Iron Plates changed from 8 -> 6.
Iron Ingot and Copper Ingot smelting time reduced to 2 seconds for an even 30/min.
First mining speed effect increased 50% -> 100%.
Fixed some multiplayer bugs causing crashes or disconnects.
Fixed multiplayer bug where you could hear other players' sounds from far away.

v0.2.1 Feb 10, 2026

Big internal refactor to construction logic and machine connections for better multiplayer support.
Added Ferrocrystal as a drop from enemies, used to research combat technology.
Increased enemy Hive aggro range.
Fixed some issues with shooting in multiplayer.
Pistols and Rifles will use either Ballistic or Piercing rounds, whichever it finds in the inventory first.
Fixed a bug where projectiles could occasionally hit the player firing them.
Fixed a bug where key bindings would not save to disk correctly.
Reduced game size by optimizing and removing unused textures.
Added a new working animation for the Constructor building.
Updated sound effects for the Growler, firearms, and item pickups.
Fixed a bug with AI pathfinding.

v0.2.0 Jan 28, 2026

⚠️️ Mandatory World Reset: Due to significant system changes, all previous save games are incompatible. Players must start a new world.
Art Style Overhaul: The game now features a new 'stylized' appearance with bold shapes and cleaner visuals designed to improve GPU performance and future modding support.
Trains Introduced: Functional (work-in-progress) trains added, including locomotives, cargo wagons, stations, and automated drive modes for long-distance resource transport.
New Logistics Machines: Separate Belt Splitters (1:3) and Mergers (3:1) have replaced the previous combined 2:2 unit, with new priority lane controls and item filtering.
Specialized Assembling Machines: Three new production machines - Constructor (1:1), Assembler (2:1), and Fabricator (up to 4:1).
Tech Tree Balancing: Progression has been revamped to accommodate the new research.
Improved Resource Generation: The map generator now ensures at least one of every resource node (except crude oil) spawns near the starting area.

v0.1.2 Oct 6, 2025

New conveyor belt rendering. Should fix some visual bugs and possibly improve performance.
Dramatically increased amount of resources on newly generated deposits.
Allow temporary invalid placement of conveyor belts before finalizing position.

v0.1.1 Sep 25, 2025

Temporarily removed day-night cycle until there's a way to properly light up the night.
Scanning for resources now also shows nearby harvestable items.
Updated the sound effects for gunshots.
Lowered the volume of machines.
Fixed a bug where the concrete building menu got stuck when opening the tech tree or another menu.
Fixed a bug where the fluid extractor would harvest water instead of oil if the crude oil deposit was close to a body of water.

v0.1.0 Sep 18, 2025

Official Demo Release!
Reworked new player experience and onboarding.
Increased resource deposit amounts.
There should be less rain and foggy weather overall.
New model and texture for combustion generator.
New pipette tool to quick select buildings (middle mouse button by default).
Added distance limits to conveyor belts and copper wires.

v0.0.14 Sep 16, 2025

Added setting to toggle sprint instead of just hold to sprint.
Added mining speed upgrade tech.
Added melee damage upgrade tech.
Updated main menu background to showcase random worlds.
Performance improvements and bug fixes.

v0.0.13 Sep 5, 2025

Proper base building. Concrete is now used to build floors, walls, ramps, etc.
Most buildings are about 30% smaller.
Updated item and recipe tool tips.
Added ability to mass dismantle up to 50 buildings.
Updated escape pod crash visuals.
Added underwater visual effects.

v0.0.12 Sep 1, 2025

Added a jetpack for the player.
Added some sound effects to machines while they are working.
Automatically place power poles when connecting copper wires.

v0.0.11 Aug 29, 2025

Updated enemy AI. Enemies don't spawn unless you approach or build near an enemy hive.
Enemies are slightly smarter when picking what to attack - if they're attacking a building and you hit them, they'll switch to the player.
Updated turret graphics and behavior to shoot at the closest enemy or hive.
Added the damage bonus modifier to all player weapons.
Improved the logic when shift-clicking items in inventory.
Added animation to the mining drills.
Removed jiggle effect when harvesting resources, replaced it with debris particles.

v0.0.10 Aug 11, 2025

New fluid system with pipes, fluid extractor, and an oil refinery.
New technology to increase data pack upload speeds.
New dismantle mode for picking up buildings.
Updated visuals for the input/output arrows when placing buildings.
Improved UI of the resource scanner.
Updated smelter so fuel and items can input from either belt.
Added damage bonus modifier to Crowbar to make it feel more fun.

v0.0.9 Jul 25, 2025

Major rework to early game progression. Start a new world for the ideal experience - no guarantee old worlds will work.
You can now scan for nearby resource nodes with [V].
Removed Scrap Metal. You can now get Iron/Copper Plates from debris in the world.
Updated resource node visuals.
Added Combustion Generator as an early game power source.
Removed Windmill for now (may return as an alternative energy source).
Added Electric Mining Drill to replace burner mining drill.
Various recipe changes.

v0.0.8 Jun 25, 2025

New graphics for Workshop, Belt Splitter, and Conveyor Supports.
Improved loading time for larger saves.

v0.0.7

Fixed player not moving on belts.

v0.0.6

⚠️ Old saves are not compatible with this version!
New terrain and biome generation - 9 distinct biomes with their own configurable resource generation.
Player run speed and jump height have been increased.
Lots of new item and part models.
Player must be on the belt part of a conveyor to move; you can stand on the sides to stop moving.
The conveyor belt texture has been updated to look like it's moving.
Updated storage container graphics.
Added basic recipe tooltips to unlocked items in the tech tree.
Fixed some building collision issues.
Fixed issue with mining drills harvesting items from nearby resource nodes instead of the one they're placed on.
Reduced some research costs in the tech tree.
Reduced crafting time for gears and basic research packs.