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Atom

Realistic survival overhaul.

Vanilla survival, rewritten to respect your time and punish carelessness. Thirst. Temperature. Fatigue. Weight. The systems Minecraft never had, layered in without breaking what works.

System 01

Temperature

Walls hold heat, campfires warm the room, rain soaks you and cold slows you down. Dress for the biome, or build against it.

System 02

Rooms with purpose

Furniture tells the game what a room is. A real bedroom anchors your respawn, and a lounge by the fire recovers comfort faster after a long trip.

System 03

Weight

Inventory has a hard weight cap. Carry less, plan more, bring a friend.

Latest from the devlog

All 3 →
A lounge with a fireplace, armchair, grandfather clock and ceiling fan
2026-07-22

Decorating with purpose

Giving the houses and rooms you build a real reason to exist

Standing outdoors in rain at night, readout says Cold 12.7°C and 23% wet
2026-06-17

Rooms made me rewrite temperature

Walls didn't exist to the old temperature system. They do now.

Atom, in its early morning light
2026-06-08

Atom is back, and it lives here now

Atom, the vanilla survival overhaul is back, rebuilt on Glowstone. First playtests run June 27th-28th.

Atom

Minecraft, if it actually tried to kill you.

In vanilla Minecraft, survival ends fairly quickly, before you know it you have full diamond armor and more than enough food to survive.

In Atom, survival is a constant struggle. You knap your first tool out of a rock, you need to think about what food you have, and what you eat. You'll need to keep your body warm, and you'll want to keep your base sealed.

What's different

Knap your tools, don't craft them

Place a stone in a knapping station. Click cell by cell to chip away the shape you want. Get the pattern right and you've made an axe head. Different materials produce different tools from the same pattern.

Fire is a thing you tend

Campfires need you to feed it fuel, or it will die. When tended to, that fire cooks your meat, smelts your metal, and keeps your body out of the cold.

Your body has a temperature

Cold nights, wet clothes, hard labor. They all move the needle. Sit too long in the rain and you'll start losing health. Build a shelter, dry off, dress for the weather. The game knows when you've actually sealed a room, and it treats real shelter like real shelter.

Blocks fall when nothing holds them

Gravity is now a force on all blocks, and you need to take it into consideration when building, otherwise your ceiling may come down on you.

Reinforced bases stay built

Reinforce a wall and keep griefers out. There are multiple levels of reinforcement, each taking longer and longer to break through.

How the first hour looks

  1. Pick up sticks and stones. Explore your immediate surroundings, find resources you need to survive.
  2. Sharpen your stones. Knap it on hard rocks into a sharpened flint. It'll break eventually, so make spares.
  3. Kill something small. Scrape the animal hide on a leather bed. Cook the meat over a fire.
  4. Wall off a room before nightfall. The game knows when it's sealed. Your body will thank you.

Built for the long haul

Atom is a survival overhaul, not a minigame. The progression rewards players who learn the systems, not players who memorize recipes.

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