Demo Update 20th April 2026

A note before we get into it

We know many of you have been waiting on fixes for the demo for a while. As a small team, getting the full game launch out the door meant the demo had to take a back seat temporarily, and we really appreciate your patience with that. This update is a big one, and we hope it makes the demo experience significantly smoother for anyone jumping in for the first time or returning to check it out.

Thank you.

Now, here's what's been fixed:

Gameplay

• Fixed an issue where loading a fully completed demo save would skip unlock monument objectives and jump straight to "Complete all monuments"

• Fixed a softlock where the player was unable to finish the demo after delivering the Android

• Fixed an issue where buildings would consume datashards for auto-upgrades while the next floor upgrade was still locked

• Fixed an issue where the player could place factory assets mid-air

• Fixed an issue where the player could place 1x1 objects inside mountains

• Fixed an issue where pressing Ctrl+Esc prevented the player from placing objects afterwards

• Fixed an issue where the right mouse button failed to cancel a move on the first click

• Fixed an issue where the title froze when moving a functioning Dye Mixer attached to a Tunnel

• Fixed a datashard cap issue in the demo

• Fixed an issue where datashards were not deducted when upgrading a building

• Fixed an issue where datashards were not deducted when unlocking a tech tree node

• Fixed an issue where the Oil Rig didn't appear in the toolbar after being unlocked from the tech tree

• Fixed an issue where the Extractor didn't appear in the toolbar after being unlocked from the tech tree

• Fixed an issue where the player wasn't able to link harvester pads to buildings

• Fixed an issue with the factory stopping production abruptly

Saves & Loading

• Fixed an issue where loading a demo save in the full game caused all structures to go missing

• Fixed an issue where map conversion on an old save replaced structures with trees

• Fixed a crash/null reference error when pressing Load on the main menu

• Fixed an issue where the game got stuck on the loading screen when pressing Continue

• Fixed an issue where saves from the main build were visible in the demo build

• Fixed an issue where the demo build saved to the wrong folder on Steam

• Fixed an issue where load game options and previous saves were missing in the demo staging build

• Fixed various save-related issues in the demo build

• Fixed an issue where a new save would incorrectly show an "older map" warning

Tutorial & Onboarding

• Fixed a blocker where the player could place multiple operators during the tutorial

• Fixed an issue where the Assembler operator tutorial highlight carried over into new saves with no tutorial

• Fixed an issue where the Cutter tutorial progressed incorrectly when selecting the 4th configuration size

• Fixed an issue where autosave for onboarding disabled itself if the player reloaded after starting onboarding

• Fixed multiple debug strings appearing throughout onboarding

UI & Text

• Fixed placeholder text appearing across multiple menus and UI states including the Day/Night cycle menu, challenge module delivery, blue paint production, game start without tutorial, monument Needs/Creates sections, MaxZoom settings, Stamper configuration, and Fences cosmetic item

• Fixed text in tutorial and narrative bot pop-ups not displaying for Traditional Chinese, Simplified Chinese, Japanese, and Korean

• Fixed language not updating in pop-ups triggered from message boxes or in the controls menu when changing language

• Fixed text overlapping with the Pin All button in the module viewer

• Fixed the starting node name overlapping in the Tech Tree when zoomed out

• Fixed the 1x4x1 module not adjusting correctly inside the Cutter

• Fixed the node warning changing appearance after a few seconds

• Fixed incorrect information in the manual for the Harvester Pad capacity, Hexacrystal extraction operator name and image, Remove and Clear Items tool names, and Harvester Pad general info

• Fixed the Demo tag in the save/load list being inconsistently shown

• Fixed long save names overlapping the Demo icon in the save list

• Fixed the "Available in full game" text not showing for locked decorations

• Fixed overwrite save, back to main menu, and quit game popups incorrectly appearing after closing the save list or in-game menu

• Fixed the Delivery Dock not consistently displaying the "Deliveries capped" message

• Fixed an issue where clicking the Space Depot showed yellow bots and datashards instead of grey and blue

• Fixed the wrong image/model being shown for the Delivery Dock

• Fixed demo information being displayed in the full game build

• Fixed no warning being shown when the delivery dock stops accepting grey bots after 61 deliveries

• Replaced Droid with Android

Settings & Controls

• Fixed the keybind settings page not being visible in settings

• Fixed the player being able to move the camera while the Controls menu was open after resetting controls

• Fixed the player being able to check every language simultaneously in language settings

• Fixed the Window Mode setting being incorrectly labelled as "Fullscreen Mode"

• Fixed punctuation and grammatical errors in the Fullscreen Mode options, Polyrock tab, and drone assignment text

Visuals & Design

• Fixed blocked tiles appearing in the playable area

• Fixed a floating environmental prop on an island

• Fixed the Skyline failing to place in the bottom-right corner of every island

• Fixed the conveyor belt corner showing an incorrect direction in the placement preview

• Fixed assets disappearing when placing a large number of factory assets

• Fixed the placement animation persisting for conveyor belts after placing one

• Fixed the Remove tool only working once per selection

• Fixed modules inside the Assembler requiring two clicks to select

• Fixed the Kwalee logo screen legal text being illegible during boot-up

• Fixed the minimap control setting appearing even though the minimap was not present in the build

Performance

• Fixed stuttering when navigating to the edges of the map

Audio

• Fixed the selection tool not playing its sound effect when pressing RMB

Localisation

• Fixed inconsistent translation of the Creator Program window in the main menu

• Fixed text having inconsistent line spacing in Polish

• Fixed the Fullscreen Mode option text being cut off in Polish

• Fixed the Create button having inconsistent spacing in the New Game menu

• Fixed the miners quest UI starting the count from the 3rd miner instead of the 1st

• Fixed some players seeing debug text when launching the game using unsupported language

Thanks again for your patience, we hope this makes the demo the best introduction to Modulus it can be. If you spot anything else, you know where to find us.

— Team Happy Volcano