- Patch 17 - 9 February 2026
Patch 17 is now live with the following changes: AI Fixed AI to sound horn after loading a saved game Fixed AI route planning to work better in some cases Fixed AI route planning failure notification to catch all planning failures Fixed placing of wrong way signs to update data structures related to route planning correctly. This improves AI route planning and prevents possible performance issues caused by signals Graphics Fixed possibly broken lake and floor surfaces Fixed possibly incorrect terrain textures near fences Fixed dust clouds to appear more consistently when cutting or filling terrain Miscellaneous Fixed a possible animation related crash Fixed a possible crash when loading some terrain tiles Fixed volume setting to apply to HUD and footstep sounds Fixed HUD to display the correct radius value in some cases where the front and rear end of the track laying unit are on differ…
- Patch 16 - 23 November 2025
This patch fixes a crash when using the HUD menu option to go back to the main menu (instead of using Esc or the gamepad centre button)
- Patch 15 - 22 November 2025
Patch 15 has two changes: Fixed a crash when navigating to a new screen in the main menu and pressing Esc (or gamepad right centre button) to return to the main menu in the same frame as the new menu options appear Fixed gamepad minimap pointer teleporting to work after going to the main menu and back during the game (instead of having to first point to some other interaction)
- Patch 14 - 19 November 2025
This patch fixes a crash when unlocking the minimap pointer using a gamepad, going to the main menu and back to the game, then pressing the right trigger to teleport.
- Patch 13 - 17 November 2025
This update marks the end of major changes and improvements to the controls, user interface and stability of the game. Smaller patches will still be released to address any leftover issues. Content updates like bonus maps are not completely ruled out but the game would have to become more popular for them to be worthwhile. Let's see what we got here: HUD Added key for hiding the HUD menu (default: F1) Added diagonal stripes to HUD menu fills Made top vignette less pronounced when mouse pointer is unlocked Changed camera view to span the whole screen and made the HUD menu semi-transparent Changed centre circle to a smaller dot Added display of title and key bindings of highlighted 3D cab control below the centre dot Changed the HUD menu so that highlighting a 3D cab control no longer highlights the corresponding menu option Removed resolution and screen mode settings from the HUD menu be…
- Patch 12 - 6 October 2025
Patch 12 is now released. This patch fixes the recently announced security vulnerability found in most games made with Unity.
- Patch 11 (Walking, couplers, AI, UI) - 3 October 2025
Patch 11 is now live with important fixes and quality-of-life improvements: Walking Fixed bridges to support walking Fixed footstep sound when standing still Couplers Fixed un/coupling on foot when cars are off track Fixed player owned trains refusing to couple in some cases (thanks to player jeanvoilegaz59 for help!) Fixed distance and positioning of visible couplers when cars are coupled (still not 100% accurate in all cases) Fixed coupler interaction when there's a derailment sign nearby AI Fixed long AI trains sometimes getting stuck at red signals Fixed AI to not drive too cautiously downhill (at half speed and stopping for no reason) Fixed AI to use power and brake more quickly (thanks to player kev4ev for help!) Changed AI to be more careful about not exceeding speed limits Adjusted AI braking curves again User interface Fixed HUD menu to remember if minimap or achievement box wa…
- Patch 10 (Track layer, derailments, markers, AI) - 23 September 2025
Patch 10 is now live with several improvements to the track layer to make track laying and removal easier: Track layer Fixed derailment when removing a turnout but not reversing far enough for the turnout to be completely removed, then re-entering the removed turnout Fixed track removal mode to stay on if engaged on non-removable track Fixed inconsistent height reading on the minimap when digging or filling Fixed inaccurate steering when using the control panel steering lever Fixed gearbox to engage gears more reliably Fixed first brake notch to actually do something Fixed grade lever, grade gauge and grade markings on the control panel Changed lasers to be shown only as far as you have track remaining. If the lasers start disappearing, you're running out of track Added curve lasers when highlighting the "min radius" or the "build turnout" HUD option. Recall that the min radius setting…
- Patch 9 - 17 September 2025
Patch 9 is now live with the following changes: Fixed a possible crash when placing a wrong way sign in front of an AI train Small correction to the Russian translation of the difficulty selection menu suggested by player Geen
- Patch 8 (Locos, AI, markers, minimap) - 16 September 2025
Patch 8 is now live with improvements to AI, markers and minimap! This patch also increases the torque of the medium and fast locomotives at low speeds to prevent them from stalling at 1% gradients. AI Fixed AI to react to new wrong way signs immediately Fixed AI to prevent it from running off the end of track when removing a piece of track Fixed AI train getting lost in some cases after rerailing or waiting for another train Fixed AI train sign to not show "waiting for signal" incorrectly Adjusted AI braking to reduce overshooting switches Markers Added height markers on minimap. Moving the mouse pointer over the marker shows its height Added a game menu option to remove all markers Added a new 3D-model for height markers. Old markers may become unremovable in saved games unless removed with the new "remove all markers" option Increased height marker removal distance to make removal ea…
- Patch 7 - 13 September 2025
Patch 7 is now live with the following changes: Fixed a possible program hang when driving a lost AI train manually to its destination. Thanks to player Geen for the repro! Relaxed AI deadlines a little for the hard mode and a lot for the easy mode
- Patch 6 - 10 September 2025
The sixth patch is now live with new optional key bindings, changes to the dirt mechanics and various bug fixes! Key bindings Added customizable key bindings for some of the most commonly used HUD menu options. The new bindings are unused by default to make sure they won't conflict with any existing key bindings. Dirt Doubled dirt balancing rate on easy mode and changed the balancing point to 50% for more headroom Added dirt storage to home: you can transfer one carload of dirt from the train to the depot and back (from the home buying menu) Tutorial Fixed tutorial message timing for Chinese and Japanese languages Fixed incorrect "almost full" dirt notification when loading or continuing a game Fixed tutorial messages to no longer vanish when going to the main menu and back Fixed tutorial to prevent steering from the steering lever before connecting the power plant Misc Fixed a possible…
- Patch 5 - 6 September 2025
Patch 5 is now live with the following changes: Fixed a possible crash caused by the AI pathfinding system Removed the option to buy track as it misled some people into thinking that it's the only way to get more track (when you can refill at home for free) Moved the super fuel timer behind the super fuel option to clean up the buying menu
- Patch 4 - 5 September 2025
Patch 4 is now live with the following changes: Fixed yet another possible crash when driving a lost AI train to its destination manually Fixed "shadow render pass" crash Fixed doors and gates to close behind the AI train again (was broken in the previous patch)
- Patch 3 - 4 September 2025
Patch 3 is now live with the following changes: Fixed two different possible crashes when driving a lost AI train to its destination manually Fixed a possible crash when unlocking a Steam achievement
- Patch 2 - 3 September 2025
Patch 2 is now live with the following changes: Fixed crash when unlocking the mouse pointer and exiting the track layer by using mouse scroll wheel on "hop off" Fixed turnout building when unlocking the mouse pointer and clicking on "build turnout" Fixed key mapping to recognise modifier keys (shift, alt, ctrl) and combinations of such keys Added settings option to restore default keys
- Patch 1 - 1 September 2025
The first post-release patch is live! This quick patch fixes an audio crash with the error message "ArgumentNullException: Value cannot be null" and adds a graphics option to disable shadows. There appears to be some kind of Unity bug that causes shadow rendering to crash on some systems with the error message: InvalidOperationException: RenderPass Render Shadow Maps was not provided with an execute function or ArgumentException: Trying to access resource of type Texture with an invalid resource index 42. If you are constantly getting a crash with either of these error messages, please disable shadows from the graphics options (via Settings in the main menu).
- Constracktion is now officially released! - 1 September 2025
The base price is 13.99 USD, 17.99 CAD, 20.50 AUD, 11.79 GBP, 13.79 EUR. For the first two weeks there's a -10% launch discount. If you already own Diesel Railcar Simulator you can get an additional -30% discount by buying the Complete Lapioware bundle. Happy track building! If you need help getting started, please join the community on Steam or Discord and check the guides under the Steam Community pages.
- Fourth pre-release patch - 31 August 2025
The following changes are now live: Fixed changed key mappings to save and load correctly Fixed steering menu option text flickering Fixed turnout building and removal in some cases (track layer should no longer go on an invalid switch and then derail) Added menu option to derail vehicles on foot (you can use this to "pause" an AI train for a minute) Added option to change rerailing to resetting (you can use this to reset your train if it's stuck but it also works on AI trains)
- Third pre-release patch - 29 August 2025
The following changes are now live: Fixed map height reading to be more consistent when laying track Fixed potential null reference crash in mouse scroll handling Fixed signal routing problem causing switches to be set incorrectly Fixed Map 3 max industry levels and added track pieces on home platform Fixed radius calculation for min radius achievement to also take actual radius into account Fixed signal adding to not work when map doesn't have signals Fixed getting stuck inside a wall on foot Removed grade matching. Changes to the grade setting will no longer be overridden when running on existing track Changed collisions to other objects on foot to be less sticky Improved German translations (thanks Bravura Lion) Added teleporting by clicking on the map. You can only teleport to your own tracks (but the map doesn't show them yet)
