Shenzhen I/O cover
Shenzhen I/O screenshot
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Genre: Puzzle, Simulator, Indie

Shenzhen I/O

UPDATE: New achievements
Today's update adds two new achievements and a small tweak to the electronic practice target puzzle's first test run.

UPDATE: Making the second-to-last puzzle hard again
The second-to-last puzzle has been reverted to its original, harder form.

SHENZHEN I/O has left Early Access!
Thanks to everyone who provided feedback about the game during Early Access. We wouldn't have made it what it is today without your input!

UPDATE: Small fixes for re-verification tool
This morning's update fixes a few bugs that caused the re-verification tool to get stuck on some solutions. It also changes the second-to-last puzzle in the game to make it a little less tedious.

UPDATE: Design re-verification tool
Tonight's update adds a design re-verification tool to the in-game control panel. We've reset the leaderboards and histograms in anticipation of leaving Early Access tomorrow, so please use it to resubmit your scores!

UPDATE: New puzzle balance tweaks, XBus fixes
Changes include:

  • Fixed a few bugs with non-deterministic behavior in ambiguous XBus situations.
  • Made the new harvester puzzle easier.
  • Made the new status display puzzle harder.
  • Improved the test cases for the new stopwatch puzzle.
  • Improved the wording for a few puzzle descriptions.

UPDATE: More tweaks for the new campaign
Changes include:

  • Tweaked the laser tag puzzle to reduce the number of cases and make it a little simpler for new players.
  • Added some missing information to the SushiRobo floor plans.
  • Meowved an input in a late-game puzzle.
  • Fixing a bug where you couldn't actually use a late-game LCD screen.
  • Fixed a bug where you could hover over XBus packets that weren't actually visible.
  • Fixed a bug where scores weren't shown on the completion screen if you couldn't download the histograms.
  • Fixed a bug where profiler bars didn't show for NOP instructions.
  • Fixed a crash when holding spacebar while dragging a chip.

UPDATE: New campaign fixes
This morning's update fixes a few bugs with visualizations, descriptions, and test cases for some of the puzzles in the new campaign. If you see anything else weird, let me know at zach@zachtronics.com!

UPDATE: Pocket oracle bugfix
This update fixes a bug in the pocket oracle puzzle introduced in today's FIRMWARE UPDATE.

FIRMWARE UPDATE VERSION 1.3 is now live with a NEW CAMPAIGN!
FIRMWARE UPDATE VERSION 1.3 is now live with a NEW CAMPAIGN!

UPDATE PAGE: http://www.zachtronics.com/firmware-update-3/

NOTE: It is highly likely that changes will be made to the new puzzles that were added as we get stats and feedback from players. If you have any thoughts, questions, or suggestions, please send them to zach@zachtronics.com for consideration!

New content:

  • Added a new campaign with user-inspired puzzles that is unlocked at the end of the main campaign. If you are using a printed manual, you will need to print the three pages added to the end of the Supplemental Data section.
  • Added a new puzzle to the main campaign based on one of Zach's failed business ideas from before he started a game studio.
  • Added the MC4010 math co-processor to the prototyping area, which adds advanced math operations not found on the MC4000 and MC6000 microcontrollers.

Other changes:

  • Added support for display outputs, which allow you to send whatever you want to LCDs in puzzles so long as it shows the right thing at the right time.
  • Reworked the drinking game scorekeeper and precision food scale puzzles to use display outputs.
  • One of the outputs on AND/OR/XOR logic gates is now automatically inverted.
  • The secret puzzle (which was previously accessible by clicking on Zach's portrait in the in-game Early Access email) is now accessible through a secret code in the "puzzle archive".

New and updated manual pages:

  • LC70Gxx SIMPLE I/O LOGIC GATE FAMILY
  • MC4010 MATH CO-PROCESSOR
  • SUSHIROBO RESTAURANT / KITCHEN PRELIMINARY DESIGN
  • THORIUM SALT REACTOR CUSTOM LCD
  • MASS PRODUCTION OF A NEURAL PROCESSING LATTICE
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