Nuclear Epoch Update & Patch Notes: Every Version Since Launch

Fifteen patches in thirty-one days. That's the pace Cat Play Studio set for Nuclear Epoch in its first month after the June 25 launch — including two updates shipped on the same day and a hotfix that landed on a Sunday. If you searched "Nuclear Epoch update" to figure out whether this game is alive, the answer is an emphatic yes, backed by one of the loudest post-launch rhythms I've seen on a small survival title.

The problem is that reading those changes means piecing together fifteen separate announcement posts, each translated from Chinese in a hurry. "Fix the error caused by the impact of merchant's personal information multiplier" is a real line from the official notes. So this page does the digging for you: every version since launch, what actually changed in plain English, when it shipped, and what the developers have publicly said comes next. Think of it as archaeology — each patch is a layer of sediment, and the strata tell you exactly what this team prioritizes.

Quick Answer

Nuclear Epoch Update & Patch Notes: Full Version Table

Every version below is listed by its official announcement date on the Steam news hub — the authoritative record straight from the developers. Highlights are mine; the dates and contents are theirs. Skim the table for the Nuclear Epoch versions you missed, then read the era sections for the ones that mattered.

Read the strata top to bottom and a pattern jumps out: launch-week firefighting, then an economy and quality-of-life wave, then feature drops, then modding. Each era gets its own section below.

Launch Week Patches (1.0.0.1 – 1.0.0.3)

The first three days of a launch are a storm front, and this team rode it with a patch a day. Version 1.0.0.1 arrived within 24 hours of release and read like a triage report. The nastiest fix: monsters whose aggro never reset after your death, so they chased you all the way back to your spawn point like a debt collector who knows where you live. Multiplayer got explosive-barrel effects synced between players, and anyone playing on a controller stopped accidentally switching weapons when they hit sprint. Quietly, the same update raised your default carry weight to 100 and sped up stamina recovery — small mercy for early scavengers.

Version 1.0.0.2 tackled co-op's weirdest race condition: if a client's loading beat the host's world generation, you'd spawn inside the safehouse instead of the dungeon. Switching ammo types with a full inventory no longer scattered rounds across the map — they merge into one stack now. That same patch made Tier 3 ammo unlockable with Medium Gunpowder instead of rarer materials, added a movable-building feature, and gave chests a "Deposit Existing" button. If you've ever mainlined a crafting loop, you know that button alone justifies the patch.

By June 28, version 1.0.0.3 was cleaning up the tail of the storm: chest UIs that scrambled item slots, black screens from corrupted settings files, and Boss fight triggers that misfired. Buildings started remembering their snap state after placement — a small thing that saves hours of fiddling.

The Economy & Quality-of-Life Wave (1.0.0.4 – 1.0.0.6)

After the storm passes, high pressure settles in — and in Nuclear Epoch's case, that meant July 1's version 1.0.0.4, the single largest quality-of-life update the game has seen. The headline change for any base builder: furnaces and compost bins can now pull resources straight from your shared storage, which rewired entire production chains overnight (our warehouse guide covers how to exploit that link). The crafting queue at workbenches jumped to twenty items, most crafting times got cut, and the Oasis zone started regenerating stamina faster.

Under the hood, this update was equally busy. Duplicate Steam items no longer broke computing power in the Computing Center — a fix that matters if you're running the hash-rate economy we document on the Steam items page. The Green Mamba dungeon stopped refunding shotgun ammo instead of Tier 5 ammo, Fire Boss 02 lost its incorrect health regeneration, and key chests stopped occasionally keeping their keys. Players also got weapon element counter tips when selecting dungeons, fast travel between NPCs, and a camera-shake slider for every animation state.

Version 1.0.0.5 landed the same day, and its two fixes tell you everything about launch-week chaos: animals duplicated when you moved a Dragon Coop or Pigsty, and ammo could be duplicated too. Both holes are patched. The sniper rifle got a damage bump and basic resources stack higher now.

Then 1.0.0.6, on July 2, fixed the one that hurt: pigs and dragons vanishing. Your livestock stays put now. It also added an automatic save backup before entering instances — meaning a dungeon crash no longer costs you the run before the run.

Feature Drops: Custom Difficulty & Full Controller Support (1.0.0.7 – 1.0.1.0)

July 4 is when Nuclear Epoch's update cadence shifted from fixing what existed to shipping what was missing. Version 1.0.0.7 added a fully customizable difficulty system — sandbox sliders for carrying capacity, item stacking multipliers, damage multipliers, and more. The developers flagged it as still in testing, and honestly, that label is the most trustworthy thing about it. Version 1.0.0.7 also brought full Traditional Chinese support, an inventory sorting function, and a hard cap of 80 damage on any single enemy hit — a ceiling that quietly rebalanced the entire endgame.

Some changes were almost affectionate. The Oasis lost its small spiders, all of them, because sometimes love means thinning the herd. Enemies now give up chasing if they stray too far from their spawn point, and tombstones got particles so your corpse-run has a beacon. On the sharper end: up to three trackable tasks at once, one-click material placement at weapon and armor workbenches, and ESC interrupting the eat-heal-repair animations.

Version 1.0.0.8 (July 5) is remembered for one repair — the furnace's inability to fetch materials from the warehouse, a direct follow-up to 1.0.0.4's remote-pull feature. Version 1.0.0.9 (July 7) then delivered the update controller players had waited for: "handle support is complete," in the developers' own words, and our controls guide reflects the post-patch reality. Everyone else got quality-of-life gold — sprinting while reloading or using items, more ore in the mines (see the map guide for where that matters), screen-effect fixes for non-16:9 resolutions, and the end of supplies being swallowed when swapping from a large backpack to a small one. Food and medicine drop rates from search boxes went down in the same update, a quiet economy tighten.

Version 1.0.1.0 (July 8) mopped up: the merchant info-multiplier crash, a monster stuck-spot on the lightning map, and an item description for lightning dragon dung that the original translation had rendered gloriously wrong. Picking up supplies mid-reload no longer interrupts the reload either.

The Modding Era (1.0.1.1 – 1.0.1.4 + Hot Update)

The July 13 update changed the game's trajectory. Version 1.0.1.1 announced two things at once: Steam Workshop support and an official ModKit built on Unreal Engine 5.7.4 — complete with Blueprint inheritance for buildings, items, and weapons, an automated upload pipeline, and an ExampleMod starter project. The catch, in the developers' words: "Due to some issues, testing is currently only available in the Beta branch." We document the whole modding ecosystem, mod by mod, on the mods page.

The same patch carried a grab-bag of refinements that players felt daily: the menu option labeled "suicide" became "rebirth," lights run their on-cycle once per scheduled window instead of checking every hour, waist-aim accessories reduce recoil now, and the breeding-pen UI stopped making it look like your dragon had vanished when you double-clicked equipment.

From there the cadence mellowed into a steady drumbeat. Version 1.0.1.2 (July 15) fixed building collision volumes, controller failures, and a Fire Map merchant who could spawn surrounded by traps — rude. Version 1.0.1.3 (July 17) made Boss drops stackable, a small change with big inventory implications, and optimized snap-building detection in enclosed spaces. Version 1.0.1.4 (July 21) gave the dragon panel real numbers instead of vibes, kept the merchant visible at all times on Difficulty One, and shipped the official ExampleMod as teaching material for extending buildings, firearms, props, attachments, and armor.

On July 26 a hot update fixed mod buildings failing to save, with an instruction that doubles as the developers' save-safety mantra: if you hit damaged data, verify your file integrity through Steam. Every note quoted in this article lives on the official Steam news hub, which stays the source of record for every Nuclear Epoch update going forward.

Release History: Demo, Multiplayer & Full Launch

The Nuclear Epoch release date itself has three chapters. A free demo opened January 14, 2026, offering first-visit exploration, the core combat loop with limited ammo and homemade weapons, and a base-building prototype. Demo multiplayer arrived March 20, openly labeled as being in the testing stage — the same cooperative foundation that now supports the full game's friend-invite sessions (details on the multiplayer page).

Full launch came June 25, 2026, at 1:00 AM Pacific / 4:00 AM Eastern / 9:00 AM British Summer Time / 10:00 AM Central European / 4:00 PM Beijing. Two details from the launch announcements still matter. First, all demo progress — resources, gear, everything — carried over to the release version, so early adopters kept their head start. Second, the launch came with a 15% discount, a DLC pack at 15% off, and a double-discount bundle pairing Nuclear Epoch with No One Survived at 35% off. The Steam store page carries the current pricing.

The Official Roadmap (July 4 Dev Blog)

On July 4, sandwiched between two patch notes, the developers published their roadmap dev blog. It is quoted here as a historical snapshot — Stage 2 onward had not shipped as of the latest update, and the developers have not published progress figures since. What the blog actually announced, in four stages:

• Stage 1 — Custom Game Menu (completed): sandbox customization of carrying capacity, stacking multipliers, damage multipliers, and more. This shipped as the 1.0.0.7 difficulty system above.
• Stage 2 — Dragon-operated automated workstations (in progress): Fire Dragons smelting at furnaces, Water Dragons irrigating and harvesting fields, Lightning Dragons blasting ore veins, Poison Dragons logging a giant ancient tree.
• Stage 3 — Dragon logistics: worker-backpack-equipped dragons patrolling production lines and sweeping loose items into warehouses, using the Dragon Pen as a hub.
• Stage 4 — Equipment upgrades: an Enchanting Table to reroll weapon attributes with silver and scrolls, plus an Equipment Recycler that crushes obsolete gear back into raw materials.

At publication the team put overall development progress at 40%, with several features in internal testing. Those are the last official numbers — anything beyond them is speculation, and this page doesn't do speculation.

FAQ

How often does Nuclear Epoch update?

Roughly once every two days during the first month after launch — fifteen patches between June 26 and July 26, 2026, including two on a single day (July 1). The rhythm slowed after mid-July as the team shifted from hotfixes toward the modding platform.

What is the latest Nuclear Epoch version?

Version 1.0.1.4, announced July 21, 2026, followed by a hot update on July 26 that fixed mod building preservation. Anything newer would appear on the official Steam news hub first.

Why does my game look different from my friend's?

Three possible reasons. Patch 1.0.1.1 deployed to the Beta branch first, so opt-in testers saw changes before everyone. Build trackers have also logged releases on July 13 and August 2, 2026 with no accompanying patch notes — quiet deployments that never got an announcement (per SteamDB). And if a mod is involved, the July 26 hot update is your reminder that mods touch saves.

When did Nuclear Epoch come out?

June 25, 2026 on Steam for PC — that's the full release date. The free demo predates it to January 14, 2026, with demo multiplayer opening March 20.

Does my demo progress carry into the full game?

Yes. Everything earned in the demo — resources, gear, and progress — transferred completely to the release version, per the launch announcements. Nothing was lost in the move.

My save got corrupted after an update. What do I do?

The developers' own instruction, from the July 26 hot update: verify your file integrity through Steam. That official note was aimed at mod-related damage, but it works as general first aid for damaged data.

All patch contents and dates in this article come from Cat Play Studio's official announcements on the Steam news hub. Nothing on this page is community-tested guesswork — where something is unconfirmed, it says so. For what to do with a freshly patched game, start with the getting started guide.