Status
SteamPeaks
ChartsSalesUpcomingPatchesNewsCalculator
New on SteamEvery app, DLC and depot the minute Steam creates itAppsEvery app on Steam, newest change firstPackagesSubs and bundles, and what each containsDepotsDepots, manifests and install sizesTagsSteam's user tags and the games under themDevelopers & publishersCompanies and their cataloguesTechnologiesEngines, SDKs and anti-cheat found in the filesChange historyEvery PICS changelist as it lands
SignalsNineteen readings of the whole catalogueCompareAny games side by sideRecordsAll-time peaks and the days they were setReportsWeekly and monthly write-upsAlerts & newsroomWatch a game, get told when it movesSteam statusIs Steam up, right nowWeb API explorerTry the endpoints in the browser
NewsSteam's own announcements and the sales calendarCalculatorWhat a Steam account is worth, and its pile of shame
/
Sign in
/
SteamPeaks
The ultimate resource for Steam data.
ExploreChartsSalesSales and festsUpcomingPatchesNewsRecordsTrendingSignals
DatabaseAppsPackagesDepotsTagsDevelopersTechnologiesChange history
ToolsCalculatorCompareSearchAlertsSteam statusAPI
SiteMethodologyFAQDiscordSupportSign in via Steam
Not affiliated with Valve or Steam. Game names and artwork belong to their owners. All times UTC.
PrivacyCookiesFair useStatus
AtomcraftNewsLasers, Mirrors, and Prisms! (1.0.43)
In-game event

Lasers, Mirrors, and Prisms! (1.0.43)

Atomcraft · published 5 Sep 2026, 04:33 UTC

All newsPlayers around this dateRead on Steam

This update adds a bunch of things related to lasers!

  • Emerald, Sapphire, Amethyst, and Diamond Laser pixels are now craftable!

  • Mirror Pixels are craftable from Silver and Glass! They deflect lasers, and can be opened/closed using signals. Two Mirror Pixels on a 45 degree diagonal will deflect an incoming beam as if they are a 45 degree line.

  • Prism Pixels are craftable from Glass and Lead Oxide! They refract lasers by 45 degrees, and the rotation key can flip them between Prism Left and Prism Right modes.

  • The values related to weight on materials (Weight, Density) are now replaced with Mass, and have been somewhat rebalanced for consistency

  • Materials have had the follow additional properties added: Specific Heat, IsReflective, and Laser Absorption

  • Blender pixels reflect an incoming laser beam in a random direction every tick

  • Loose pixel forms of Mirrors, Prisms, and Blenders also have the laser-related effects

  • Max laser range greatly increased (128->512)

  • The model of how lasers transmit energy is adjusted. Previously, a laser beam would add directly to the heat value on every cell, which was very unbalanced. Now, the energy of a laser beam is conserved, with the beam continuing until it deposits all of its energy. The amount of energy deposited in a cell is determined by the LaserAbsorption value of the material.

I've also added a "Restart Tutorial" button to the F1 Help screen, so you can start or reset the tutorial whenever you want! :)

Other things:

  • Added reactions to create the rest of the gems up to Amethyst

  • Added the molten and vapor phases of a bunch of metals

  • Added blending of Eggs into Egg Shell and Egg Yolk

  • QoL: Shift-R can now reverse-rotate the identity of a pixel about to be built

  • BUGFIX: added translations for Aluminum Hydroxide, Black Powder, Bone, Latch

  • BUGFIX: Liquid Nitrogen's formula changed to N2

  • BUGFIX: fixed formula of molten Stibnite

  • BUGFIX: localized hardness and mass strings in the hovered pixel hint

  • BALANCE: Grass growth rate 4x

Hotfix 1.0.44:

  • Fixed weight of Clay (had become lighter than water)

  • Made color of Water more visible against surface background

Hotfix 1.0.45:

  • Added Laser Absorption to the expanded material tooltip when you hold Alt

Hotfix 1.0.46:

  • BUGFIX: fixed overflow math issue with how the laser was applying heat that could freeze water while heating it

  • BUGFIX: fixed a rendering issue if the laser beam ran out of energy in a non-solid cell

Thanks to everyone in the Discord community and Twitch chat for their suggestions as we continue to improve the way the game handles heat and energy - some of the values we set up in the game in this update will be useful foundation for future revamps of the heat system and better support future simulation improvements!

Join the Community today!

  • Discord

  • YouTube

and if you haven't already please leave me a Steam review, it really helps me a lot!

-Triplejump

More from Atomcraft

Other announcements

All news
Game update7 Sep 2026Soda :) (1.0.47)This update adds Phosphoric Acid and some ways to create a variety of sodas and cola :) (making soda is going to be important for an upcoming Slime Ranching update) Apatite also now mines into 3 variants: Fluorapatite, Chlorapatite, and Hydroxylapatite, each of which can react with Sulfuric Acid to obtain Phosphoric Acid. The three types of mined apatite can also be blending with water to form…Game update3 Sep 2026Hotfixes (1.0.42)Here are a couple quick hotfixes while I'm working on some bigger updates: · QoL: delay resaving the *.universe file when the player restores an element so it doesn't create a pause - this is what was causing the freezing for some people when completing an element in the ship progression, so I wanted to get this in right away · QoL: changed the way spawning is suppressed by built pixels so that…Game update1 Sep 2026Hotfixes and Andesitic Lava Chemistry (1.0.40)Today I did a bunch of bugfixes, and also made adjustments to lava! Andesitic Lava now cools into Sodium Aluminosilicate, and I added reactions for Sodium Aluminosilicate and its downstream products: Sodium Silicate, Sodium Aluminate, and Aluminum Hydroxide, to connect it into other parts of the reaction web. :) Bugfixes in this build: · BUGFIX: Rocket and Nuke Counters were not disappearing an…