Atomcraft Patch Notes and Update Tracker

Atomcraft moved from demo and itch builds into a Steam full release live in July 2026, with a rapid stream of quality-of-life and systems updates. Interface languages now exceed 24 — Hungarian, Swedish, Vietnamese, Indonesian, Thai, Ukrainian, Italian, and Czech joined during the launch window alongside earlier additions. This page summarizes the changes players ask about most — nukes, tracking, belts, map zoom, radioactivity, cooking, wiring, and performance — and links into deep guides on this wiki.

Launch-window video context

September 2026 — Four More Interface Languages

• Interface languages expanded: Finnish, Romanian, Norwegian, and Greek added in the August 4, 2026 update.
• Total supported interface languages now exceeds 24.
• Additional bugfixes alongside the new localizations.

August 8, 2026 — Cow Update

• Cows actively eat grass (up to 6 pixels, max 2 per bite) and produce manure.
• Manure + Soil = Loam — useful soil type that boosts crop growth in your farm.
• Craftable Cowbell pixel (from Brass alloy — Copper + Zinc) triggers milk production from nearby ready cows.
• Cows and chickens now properly respawn where placed — enabling fully automated farms.
• Deep dive: Cow Update Guide.

September 3, 2026 — Hotfix 1.0.42

• Rocket and Nuke counters no longer fail to disappear after use — a UI clarity fix for active explosive inventory.
• Additional bugfixes from the September 1 chemistry build carried forward.

See the Nuke Launcher guide for proper counter management.

September 1, 2026 — Andesitic Lava Chemistry 1.0.40

• Andesitic Lava now cools into Sodium Aluminosilicate — a new reaction pathway connecting volcanic geology into the broader chemistry web.
• Downstream reaction chain added: Sodium Aluminosilicate → Sodium Silicate → Sodium Aluminate → Aluminum Hydroxide — linking lava cooling to aluminum production.
• This connects the volcanic layer to the mid-to-late game aluminum economy, giving players a new heat-based source for aluminum-group materials.
• Bugfixes from the chemistry pass carried into the hotfix pipeline.

Deep dive: Andesitic Lava guide (new).

August 8, 2026 — Toggleable Pumps

• Toggleable Pumps added — one of the most-requested features for factory builders.
• Gives on/off control over material flow; connect to timers, sensors, and buttons.
• Enables cyclical automation patterns previously requiring complex workarounds.
• Deep dive: Toggleable Pumps Guide.

August 8, 2026 — Walk-Through-Walls Boots

• Walk-Through-Walls Boots added — a Discord community suggestion that became a reality.
• Fly through any built pixel: walls, conveyor belts, machinery, floors, ceilings.
• Natural terrain (caves, rock, soil) still blocks movement.
• Does not grant hazard immunity — plan accordingly for lava or radioactive areas.
• Deep dive: Walk-Through-Walls Boots Guide.

July 29, 2026 — Launch sale ends and post-launch polish

• Introductory -20% launch sale ended July 29.
• Steam reviews holding at roughly 97% positive at launch-window close.
• Ongoing QoL polish continues across inventory, controls, and performance.
• Prep for the Primora questline: Primora prep walkthrough and the 1.0+ Roadmap.

July 22, 2026 — Nuke Launcher

• Added Nuke Launcher and nukes (highly destructive; fallout yields heavy radioactive isotopes).
• Performance: optimized Hammer / tool highlight line drawing.
• Rolling backups for world header savefiles (up to 5).
• Balance: turret pixel category Ruby unlock cost reduced to 16 (from 64).
• Balance: procgen guarantees at least one Cobaltite room in lower limestone caves.
• F2 Editor Mode only after console command editor entry.
• Toolbox swap safety improved to reduce save corruption.

Deep dive: How to Use the Nuke Launcher.

July 21, 2026 — Material Tracking

• Eye-button pinning with sparkles through fog of war.
• Hydrogen Bromide + H2O → Hydrobromic Acid.
• Manganese reclaim reactions from oxide / chloride / sulfate dead ends.
• Save/restore Inventory+Ship visibility toggles.
• Middle-click pinned recipe ingredients into the selected slot.
• Heat Insulator improvements and NPC duplicate fixes.

Deep dive: How to Track Materials.

July 19–16, 2026 — Languages and Material Belt

• Interface languages now 24+; launch-window additions include Hungarian, Swedish, Vietnamese, Indonesian, Thai, Ukrainian, Italian, and Czech.
• Material Belt upgrade: ten rows of material shortcuts.
• Creative Mode encumbrance fix; pipette / shift pickup fixes.

Deep dive: Material Belt Guide.

July 17, 2026 — Slot locks and QoL

• Press L while hovering a material slot to lock/unlock it.
• Additional requested QoL polish around inventory workflows.

See Hotkeys.

July 14, 2026 — Thai language and toolbox QoL

• Thai language added to the interface roster.
• Save/restore Hammer, Crowbar, and Wrench settings between sessions.
• Toolbox slot highlight when hovering valid placement targets.
• Alumina reduction QoL and reaction balance fixes from the quick fixes patch.

July 13–10, 2026 — World map and performance

• World map zoom and pan.
• Empty worldmap search blocked (prevents overload).
• Multiple performance passes reclaiming substantial FPS.

Deep dive: World Map Guide and System Requirements.

July 8, 2026 — New Cooking System

• Cooking tab lists recipes craftable from current inventory while keeping discovery.
• Earlier cheese / sandwich / steak chains still matter for survival pacing.

Deep dive: How to Cook Food.

July 6, 2026 — Formula search modes

• Name Only / Formula Only / Name+Formula modes in material inventory, reaction search, and spaceship inventory.

Late June 2026 — Wiring, ship teleport, power

• Major wiring reliability improvements (especially L-shaped corners).
• Teleport to repaired friendly spaceships from the world map.
• Power grid / ship systems expansions.

Deep dives: Wiring and Logic, World Map.

Earlier 2026 — Radioactivity and Accelerator

• Particle Accelerator (protons, neutrons, alpha particles).
• Synthetic element decay with grayscale + white-noise radiation presentation.
• Geiger Counter rem meter and Rad Suit full protection.
• Discord Rich Presence showing discovered element counts.

Deep dive: How to Handle Radioactivity.

Late July 2026 — Hotfixes and QoL (Steam)

• Grass Seed: mine from Grass, plant on Dirt/Loam.
• Alumina reduction improved with molten alumina.
• Vanadium Dioxide + Molten Aluminum reaction.
• Sulfuric Acid + Water dissolving Granite (gravel).
• Reset to Defaults in Control Bindings.
• Unstuck button (backslash default).
• Guide/Inventory/Ship search scroll resets to top.
• Guide Tab defaults to Output reactions.
• Crowbar/Wrench highlight no longer inherits Hammer dotted-line style.
• Creative Mode: no encumbrance warning, no damage/air loss, free upgrades.
• Blender pixel Hardness 0.
• Laser width Alt+Mousewheel gated behind upgrade.
• Gasoline/oil vapor weight fix.
• Molten Glass merged into Molten Silica; Corundum Gravel into Alumina (Corundum Walls drop Alumina; Alumina builds Corundum Walls).

Late July 2026 — Various fixes (Steam)

• Full-game achievements fixed.
• Cooling Pixel freeze neighbors bug fixed.
• No achievements in Creative Mode.
• Corrupted device profile fallback.
• Air cooling sand bug fix.
• Spaceship inventory rendering fix.
• Hammer sound only when build succeeds.
• Ship inventory transfer rejects negative numbers.
• Weather reset on session exit.
• Single-drip sounds muted by default.
• Solar Panel grouped with laser pixel set.
• Transfer dialog cursor at end of number.
• Phase-of-matter icons in Ship Inventory list and hovered pixel tooltip.

Deep dives: Spaceship Inventory Guide, Hotkeys, 1.0+ Roadmap.

How to use this tracker on the wiki

1. Skim the dates above for systems you missed.
2. Open the linked deep guides for workflows.
3. Use Reactions Cheatsheet for chemistry deltas.
4. Check Demo vs Full if you are returning from the January demo.
5. Return to the Review hub for verdict and requirements pages.

Atomcraft is still receiving polish after launch. This tracker is a fan-maintained orientation layer — always confirm critical numbers in your installed build’s patch notes and Material Guide.