Today's update fixes a small bug where an experimental third-party leaderboard upload icon was shown even when you weren't uploading to an experimental third-party leaderboard.

Today's update fixes a bug where the cursor was misaligned in fullscreen mode on notched MacBooks, although the issue seems to persist when the game is running in a window. I'm still looking into that part. This update also fixes a bug where pivoting the same atom in two different directions with two different grabbers was somehow not considered an error. I'm shocked we didn't fix this sooner!

Boot up your Z5 Powerlance and dial into Last Call BBS, the last game from Zachtronics! The Barkeeps loaded up his retro computer with a full set of puzzle games for you to download and play. No need to worry about copy protection, theyre all fully cracked and ready to enjoy! Includes eight full games:

• 20th Century Food Court: Design factories to produce food just like they did over 700 years ago in the 20th century. Keep your costs low and your machines running fast!
• STEED FORCE Hobby Studio: Assemble robot models based on the anime smash hit Steed Force right on your computer. No sandpaper required!
• XBPGH: The Forbidden Path: Enter a cursed world and create bizarre flesh sculptures in exchange for eternal life. The master is pleased but can you trust him?
• Sawayama Solitaire: It wouldnt be a Zachtronics release without a brand-new solitaire game. This time its a fresh take on Klondike, the classic solitaire variant.
• Dungeons & Diagrams: Try your hand at these beguiling tile-based logic puzzles. Can you map out the dungeons and steal all the treasure?
• ChipWizard Professional: Build integrated circuits using wires, transistors, and capacitors. Wait a second, is this a game or a CAD program?
• HACK*MATCH: The tile-matching minigame from EXAPUNKS, completely remastered with a single player campaign and local head-to-head multiplayer (with Steam Remote Play support).
• Kabufuda Solitaire: Create matching sets of Japanese kabufuda cards in this retro-demake of the challenging original solitaire game that debuted in Eliza.

Today's update fixes some obscure validation issues that could be exploited to prevent collisions.

Today's update adds a Czech fan translation by someone named Mike. Thanks for your hard work! If you have any feedback about the translation (or anything else, really) you can send me an email (zach@zachtronics.com) and we'll get to the bottom of it.

Today's update adds a Portuguese fan translation by Yuri Nikolai Martinez Laskowski. Thanks for your hard work! If you have any feedback about the translation (or anything else, really) you can send me an email (zach@zachtronics.com) and we'll get to the bottom of it.

Today's update includes some minor fixes to solution validation logic. Unless you're hanging out on the unofficial Zachtronics Discord server and know what to look for you shouldn't see anything different in the game.

Today's update includes some small fixes to the Korean translation.

Opus Magnum ! Opus Magnum is now available in Ukrainian! Thanks to RDSk, with help from Cedmil, soitin, and the Ukrainian localizations Discord server.

Opus Magnum artk Trke! Opus Magnum is now available in Turkish! Today's update adds a Turkish fan translation by Volkan Gezer. Thanks for your hard work! If you have any feedback about the translation (or anything else, really) you can send me an email (zach@zachtronics.com) and we'll get to the bottom of it.

Today's update adds two power-user features, which are mostly hidden for now: 1. Pressing F10 while editing a solution will reload it from disk. This will only be useful to players who are using an external program to edit their solutions, who previously had to restart the game to see their changes show up. 2. Pressing F10 while the GIF recorder is open will switch it into advanced mode, which allows you to manually override when recording starts and stops. If you hit F10 after the solution finishes recording it will default to the automatically detected start and stop frames. If you hit F10 before the solution finishes recording it will cancel recording immediately but require you to set the start and stop values yourself. If you have any deep thoughts about these changes you should email me (zach@zachtronics.com) and let me know what you think!

Today's update adds a Korean fan translation by Kan_Pungki. Thanks for your hard work! If you have any feedback about the translation (or anything else, really) you can send me an email (zach@zachtronics.com) and we'll get to the bottom of it.

Today's Deal: Save 50% on Opus Magnum!*

Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!

*Offer ends Friday at 10AM Pacific Time

Today's update adds a hidden setting that causes alt-click to be interpreted as a right-click. It is off by default.

Today's update adds an experimental numpad-based keyboard layout for players who use their left hand to hold their mouse.

Opus Magnum ya est disponible en espaol! Por favor enveme un correo electrnico (zach@zachtronics.com) si tiene algn comentario o ve algn error.

Today's update improves some error messages for when the game crashes.

Today's update contains a small change to the custom puzzle file format. Nothing to see here, move along...

Today's update adds a third (and presumably final) user-created journal issue that includes two production puzzles. Thanks to everyone who helped out putting these together!

Today's update adds another user-compiled journal issue with five new puzzles designed to challenge your optimization skills.

Today's update adds a new journal issue that was assembled with help from the unofficial Zachtronics Discord server. Thanks everyone! It also includes a small change to add scores to GIF filenames, and a small fix for a bug where histograms wouldn't be shown if you were subscribed to too many Workshop puzzles.

Tonight's update switches the game's audio subsystem on Windows from WASAPI to DirectSound. This should fix the previous surround sound bugs for all users without anyone needing to turn on a hidden setting, and should also fix some scenarios where the game did not respond to changes in audio devices while running.

We're shutting down the Zachtronics store today, so this update removes the link at the end of the game to where you could buy an iron-on achievement patch. If you narrowly missed this you can email me at zach@zachtronics.com and we'll work something out.

The puzzle now requires 18 outputs instead of 6.

Today's update adds a new journal issue that is entirely production puzzles. This is partially an experiment to see how interesting user-created production puzzles are, as four of the five puzzles are standard user-created puzzles that I've jammed into production cabinets that look like they're about the right size. If you end up playing these puzzles you should post your comments somewhere that I'll see them!

Today's update adds a hidden option that will hopefully fix some of the sound issues that were introduced when we rewrote our audio backend a few weeks ago. If you're experiencing static, skipping, or other sound issues when using a surround sound audio device, please follow these instructions: [olist]

We pushed an update yesterday afternoon that added a new issue to the journal with some "battlefield medicine" themed puzzles. We also made the following minor bug fixes:

• The game's content files are now opened as read-only, which should hopefully fix some of the antivirus-related crashes some players have been experiencing.
• Atom spawn/consume effects on glyphs are now cleared when the simulation is stopped, which should fix a bug causing "ghost atoms" to linger on the board.

Opus Magnum has left Early Access! In the coming weeks we'll continue fixing bugs as they arise, and are hoping to add at least one or two additional journal issues. Our thanks go out to everyone who provided feedback, suggestions, and puzzle submissions throughout the Early Access process; it's always appreciated, and always makes our games better.

Opus Magnum is Now Available on Steam and is 10% off!*

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

*Offer ends December 14 at 10AM Pacific Time

Opus Magnum is Now Available on Steam and is 10% off!*

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

*Offer ends December 14 at 10AM Pacific Time

Today's update replaces our old audio engine with a completely new one. Most players shouldn't see any change, but this should hopefully fix a crash specific to players using the Chinese IME in Windows. Also included in this update are two small bug fixes:

• Fixed a bug where bound atoms dropped by multiple grabbers into a conduit would sometimes return through the conduit immediately.
• Fixed a bug where Van Berlo's wheels would not block reagent inputs in the same way that other atoms do.

Tonight's update fixes a few translation issues in German and Chinese, and even a crash (!) when opening the Aether Detector puzzle with the language set to Chinese. It also includes a small performance improvement for rendering, although I don't suspect it'll make much of a difference for anyone.

Today's update adds translations for all text added since Opus Magnum first launched into Early Access, including the story for the production puzzles that were recently added to the end of the main campaign. If you see any translation errors you should let us know!

Today's update fixes a bug introduced yesterday where GIFs of repeating products would tend not to loop seamlessly because of the simulation not running long enough before starting to record.

Tonight's update is a complete overhaul of how repeating products are detected, so that you must always build 6 "repetition units", where one repetition unit is shown in the products tray to the left. The requirement that you build the "bonds to the right" has been removed, although you may need to build extra product if your repetition units don't align with the repetition units in the puzzle definition. In general this change should improve your cycle scores on repeating product puzzle across the board, but it's possible that some old top scores are no longer possible, requiring them to be purged from the histograms and/or leaderboards. We'll see. If you're a repeating product expert, please throw your solutions at the new implementation and let me know if you see anything weird. The best way to do this is to email me directly (zach@zachtronics.com) and attach any supporting puzzles and/or solutions that illustrate what you're seeing. It's also possible that this change allows invalid products to register as valid, so if you see any of those please let me know! Also, and totally unrelated, this update also changes the fast-forward key from Alt to 3 on Linux, because apparently Linux users can't click on things while holding the Alt key.

Today's update includes the following changes:

• Added a hotkey to select all instructions (Ctrl+Shift+A).
• Changed the fast-forward hotkey to Alt, and enabled it even when the simulation isn't already running.
• Changed the solution list to be sorted by creation time, not filename.
• Fixed a crash when opening the resolution drop-down in the options.
• Fixed a bug where the simulation would remain paused when clicking the "continue editing" button.
• Fixed a bug where you could place impossible arms on production puzzles by dragging a new arm type on top of an existing arm.

Today's update fixes an obscure crash with tracks that tended to crop up on the "special amaro" puzzle. It also adds support for QWERTZ keyboards, which it turns out are almost identical to QWERTY keyboards except for the part where they're not.

Tonight's update fixes a bug where conduits could be deleted by dragging them out of the build area. It also includes a change that will import solutions for the old version of the lead separation puzzle into the new version, although you'll almost certainly need to modify your solution for it to work again.

Today's update adds a new mini-campaign to the end of the game that introduces "production alchemy", where solutions must be built inside the confined spaces of production-grade transmutation engines. In addition to 11 new puzzles, you'll also find a little bit of story that further explores the world of Opus Magnum. Other improvements include:

• Tweaked the "Lead Separation" puzzle to have only a single lead output.
• Changed the way that tracks are manipulated so that they can be dragged from either end.
• Added the ability to show and hide the parts panel by pressing the "4" key.
• Moved the keyboard layout option into the options menu.
• Fixed a bug where tracks could be placed over other parts.

Today's update is a grab bag of changes without anything resembling a unifying theme, other than that we're getting close to wrapping up Early Access:

• Replaced "global records" with "top percentiles", which should have most of the appeal of global records without the problems. For more information about this change, check out the corresponding Reddit thread.
• Added a new achievement for solving journal puzzles.
• Fixed a crash in solution reverification caused by OneDrive.
• Fixed a bug where the animated tip for the glyph of multi-bonding wouldn't play.

Today's update includes the following:

• Added support for Dvorak and Colemak keyboard layouts. You can switch to these keyboard layouts by manually editing your config file.
• Added support for saving GIFs to a directory other than your desktop. You can specify this directory by manually editing your config file.
• Fixed a crash related to DirectX audio on some systems (hopefully).
• Fixed a crash when rotating large molecules in strange circumstances.
• Fixed the selection bounds for Van Berlo's wheels.
• Fixed a bug with uppercase letters in some locales.
• Fixed a crash when building invalid repeating products in a custom puzzle.

We've got a big update today, with two key things: 1. We've added a new element, quintessence, along with two glyphs that use it. There's a new journal issue to introduce the mechanics, along with a new variant for Sigmar's Garden that includes the new element! 2. We've reset all leaderboards and histograms for the game. To make resubmitting your scores quick and easy we've also added a button to the options screen to reverify your solutions at high-speed. The full changes include:

• Added a new element, quintessence, and two new glyphs for manipulating it.
• Added a new journal issue with four quintessence-themed puzzles and a new variant of Sigmar's Garden that includes quintessence.
• Reset leaderboards and histograms.
• Added a button to the options screen to re-verify all existing solutions.
• Added quicksilver to the bottom bar in Sigmar's Garden.
• Changed the way that GIFs are encoded to make colors less washed-out.
• Improved the appearance of the game when running at a higher "virtual resolution" on low-resolution displays.
• Fixed a crash when stopping playback right as a solution completed.
• Fixed a bug where inappropriately large resolutions could show up in the resolution list.
• Fixed a bug where custom puzzle preview pictures would sometimes be too large for Steam Workshop (error 25).
• Fixed a bug where the glyph of equilibrium was tied to the glyph of bonding for availability in custom puzzles.
• Fixed a bug in fast-forwarding in solutions where instruction sequences were all offset from the first column.
• Fixed a bug where products sometimes were not accepted in custom puzzles when changing whether or not a product repeated.
• Added some basic solution file validation for tracks.

Today's update adds a single feature: the ability to control-click (command-click on Mac) on an instruction while a solution is running to quickly advance to that instruction and pause. If you're one of those people working on 500+ cycle solutions you should try it out and let us know what you think.

Today's update includes the following changes:

• Added instructions to Sigmar's Garden that are similar to the instructions for the solitaire game in SHENZHEN I/O.
• Fixed a bug in Sigmar's Garden concerning [strike]marble[/strike] elemental proxy highlights.
• Added the ability to select higher resolutions on low-resolution displays.

Today's update adds a third issue to the Journal of Alchemical Engineering, focusing on the industrial innovations of House Colvan. Other changes include:

• Added the ability to click on the atom icons in Sigmar's Garden to highlight those atoms on the board.
• Modified the GIF frame to have a diamond in the top-right corner, to make it easier to verify that the cost score includes the new, increased piston cost.
• Fixed a crash when attempting to load non-puzzle files in the custom puzzle directory.
• Fixed a bug where glyphs could be removed from custom puzzles while remaining in their solutions.

Tonight's update removes the restrictions on non-looping solutions that were added in the past two days. It's possible that we'll try something else in this area, but for now it's back to what it used to be!

Today's update changes the non-looping solution detection introduced yesterday to be simpler and hopefully more reliable. We're aware of how preventing non-looping solutions from being accepted breaks how some players were doing one-time initialization, and hope that we can find a way to add proper support for one-time initialization that doesn't make things confusing for new players or add other unwanted side effects. As always, feel free to email me (zach@zachtronics.com) if you have any thoughts or suggestions about how such a feature could or should work. Today's update also includes some smaller fixes:

• The speed of the simulation is now based on both the number of products produced and the number of cycles that the simulation has been running. This isn't the same as breakpoints or the ability to quickly run to a specific instruction, but it should help a little with long solutions in the meantime.
• The game now remembers which chapter you had open when exiting the game.
• The game now remembers which tab you had open in the journal screen when closing the journal screen (but not exiting the game).
• The options menu now has descriptions for some of the more obscure options.
• Fixed a crash when recording a GIF of a solution with an error in it.
• Fixed a bug where you could clone a period override instruction by cloning an arm with one in its program.
• Enabled the Glyph of Disposal for the Sailcloth Thread journal puzzle.

Today's update contains two fixes that will essentially invalidate the current scores in the leaderboards and histograms: 1. The cost of the piston arm has been increased from 30G to 40G. 2. Solutions that loop fewer than two full times before producing all outputs will now trigger an additional "verification check" to verify your solution can loop without breaking. Cycle and area scores should not be affected. If you see anything that looks like a bug in the scoring system, please email us (zach@zachtronics.com) so that we can investigate it right away. I'm hoping to reset all histograms and leaderboards in the next few days, and hoping to not have to do it again after that. ALSO: I recognize the irony in how we just implemented a fast-forward feature that is completely unusable to the high-instruction-count optimizers who want it most. We are working a solution for this and hope to have it out soon!

Today's update fixes some typos in the controls menu and removes a weird character from GIF filenames when the language is set to Japanese or Chinese.

Today's update includes the following changes and fixes:

• Fixed a bug where product outputs in custom puzzles sometimes would not accept their products.
• Fixed a bug where tabbing through a repeating-product puzzle would make it complete in one fewer cycle than hitting play.
• Added a clickable exit button to the puzzle screen, which means that you can now play the game without a keyboard!
• Pressing escape in the puzzle screen when the simulation is stopped will now show a clickable exit button. If you press escape again while the clickable exit button is visible it will exit the puzzle screen. Essentially, the hotkey for exiting the puzzle screen is now hitting escape twice in rapid succession, not just hitting it once.
• Added a list of controls to the escape menu.
• You can now press "mouse 4" (the back button) to go back in the UI.

Nothing exciting in this update, just a small tweak to the Sigmar's Garden music and the way that we name puzzles in the journal, which no longer contain the author's name as part of the puzzle name.

Today's update includes a new issue of the Journal of Alchemical Engineering: Volume XCIX, Issue II: Important Developments in Seafaring It also adds a long requested feature called "global records", which you can enable in the game's options after completing the main campaign. When global records are enabled you will see the best known score at the top of leaderboards for campaign and journal puzzles. Please note that not all puzzles will immediately have global records, and if you beat a global record for a puzzle it will not immediately update. Other changes in this update include:

• Added the Glyph of Equilibrium, which does nothing.
• Added a delete button to the hotkey panel, which operates just like pressing the Delete key, and not quite like the other hotkey buttons.
• Changed the step symbol to look less like the play symbol.
• Added indicators for whether or not a puzzle has been solved to the journal and Steam Workshop interfaces.
• Fixed a bug where arms on tracks could sometimes pass through another arm.
• Fixed a bug where instructions and parts could be selected at the same time.
• Fixed a bug where Von Barlo's wheels could not move on tracks.
• Fixed a crash when opening Spotlight on macOS.
• Fixed a crash when manipulating instructions after performing an undo.
• Fixed a bug where a reset instruction would sometimes make an arm take the long way back along a looping track.
• Fixed a crash when trying to load corrupted solution files.
• Fixing a bug where histograms weren't shown for journal puzzles.

Apparently we had a DirectX counterpart issue on Windows too. Both should be fixed now!

This update fixes a launch crash on Mac and Linux introduced in the build from earlier today, caused by an OpenGL-specific shader issue. If you restart Steam it will force this update to be downloaded right away.

Today's update adds "hermit mode", in addition to some other small fixes:

• Adding "hermit mode", which can be turned on in the options menu to hide histograms and leaderboards for players so inclined.
• When running at a lower-than-native resolution, text should now be slightly more readable.
• Adding a tutorial tip to the "Stabilized Water" puzzle that teaches how you can right-click and drag to pan any of the in-game UI panels.
• Repeating product outputs may no longer be rotated.
• Removing the ability to create repeating reagents in custom puzzles, which are not supported by the game engine.
• Fixing a crash when loading corrupted solution files, which can sometimes happen when a computer playing the game is abruptly powered off or experiences a system-level crash.

Some small bug fixes for today, including one that Sigmar's Garden fans will hopefully enjoy:

• You can now match salt with salt in Sigmar's Garden.
• Improved the written description of the rules in Sigmar's Garden (English only for now).
• You can now hit Backspace on Macs to delete parts and instructions.
• You can now hit Ctrl+Backspace to delete text more quickly in the solution and custom puzzle name editors.

Today's update consists mostly of small bug fixes:

• When rotating a group of parts with the A/D keys, they will now rotate around the point that you grabbed them by.
• You can now hold the shift key while scrolling the instruction tray to make it scroll horizontally instead of vertically.
• Fixed a bug where it was possible to pivot bound atoms held by multiple grippers.
• Fixed a bug where dragging a part to the far left of the screen to delete it would actually drop it back onto the board.
• Fixed a bug that caused histogram score indicators to be horribly inaccurate.
• Fixed a bug where the hidden AZERTY setting in the config file was not honored in the UI.
• Fixed a bug where non-ASCII characters in solution names were not persisted when saving.
• Fixed some localization issues, including strings that did not fit in the UI.
• Added a window icon.

Opus Magnum is Now Available on Steam Early Access and is 10% off!*

Opus Magnum is the latest open-ended puzzle game from Zachtronics, the creators of SpaceChem, Infinifactory, and SHENZHEN I/O. Design and build machines that assemble potions, poisons, and more using the alchemical engineer’s most advanced tool: the transmutation engine!

*Offer ends October 26 at 10AM Pacific Time