Currency note: The redstone logic in this guide is still accurate after the 26.1 "Tiny Takeover" and 26.2 "Chaos Cubed" updates — neither update touched redstone mechanics.
Quick summary
Redstone in five points, for those short on time:
- Dust carries the signal, weakening as it goes. Starting from the source, power begins at 15 and drops by 1 per block; after 15 blocks the signal ends — try it in the calculator.
- A repeater refreshes the signal. On long lines, placing a repeater every 15 blocks carries the signal indefinitely.
- A torch is both a power source and a "NOT" gate. It turns off if the block it's attached to gets powered — this is the foundation of every logic gate.
- Gates are built from torches. OR is free (just merge wires), NOT takes a single torch, and AND needs three torches — see it in the simulator.
- Build your first contraption. Daylight Detector + torch + lamp = an automatic night light — follow the steps.
Basic components
Once you know these seven components, you've cracked 90% of redstone; the rest is just practice combining them.
| Component | What does it do? | What you need to know |
|---|---|---|
| Redstone Dust | Carries the signal horizontally. | Signal strength drops by 1 per block; it ends after 15 blocks. |
| Redstone Torch | Continuously powers the block it's attached to. | But it turns off if that block is powered from elsewhere — this is inversion (NOT). |
| Repeater | Resets the signal to full power (15). | It's one-directional, adds a 1–4 tick delay, and can "lock" a signal. |
| Comparator | Compares two signals, or measures how full a container is. | Essential for chest/furnace automation; we don't cover it in this guide. |
| Lever / Button / Pressure Plate | Produces a manual or automatic input signal. | A lever is permanent, a button is momentary, and a pressure plate detects footsteps. |
| Redstone Lamp | Emits light when powered. | It's the "output" indicator for every circuit in this guide. |
| Daylight Detector | Measures skylight and converts it into a signal. | Right-click to invert it — it becomes a sensor that detects night instead. |
Tip: Remember that a torch powers "the block it's sitting on," but is connected to that block's neighbors through a special rule called quasi-connectivity — this is usually the first thing that catches people off guard, and you'll see it shortly in Common mistakes.
Signal strength and repeaters
Redstone dust carries the signal while losing it: the block next to the source has power 15, and it drops by 1 at each following block. After 15 blocks power reaches 0 and the signal ends — calculate your distance:
power = max(0, 15 − distance) · repeaters needed ≈ ⌈distance / 15⌉ − 1
Don't cut it close: At exactly 15 blocks the signal drops to 0, leaving the target block unpowered. To stay safe, place the repeater before the 15th block — around block 12-13, for example.
Logic gates: it all comes from the torch
Redstone gives you two operations for free: merging wires (automatically does OR) and burying a torch (automatically does NOT). Using De Morgan's law from computer logic, you can build everything from these two, including AND, NAND and NOR. In the simulator below, toggle the inputs, switch the gate type and watch how the signal flows through the circuit:
| Gate | How to build it? | Torches |
|---|---|---|
| OR | Merge two wires at the same point — nothing else needed. | None |
| NOT | Feed the input into a block, then bury a torch in that block. | Low |
| NOR | Merge two wires, then invert the junction with a torch. | Low |
| NAND | Invert each input with its own torch, then merge them. | Medium |
| AND | Invert the NAND output one more time with a torch. | High |
Why it works: De Morgan's law says A ∧ B = ¬(¬A ∨ ¬B). In other words, if you invert A and B, merge them, and invert the result once more, you get AND — select AND in the simulator and watch the three torches light up in sequence.
Common mistakes
1. Running redstone dust more than 15 blocks without a break
Wrong
Laying a single dust line down a long corridor and wondering "why isn't the light turning on?"
Right
Add a repeater every 12-13 blocks; the signal resets to 15 and keeps going.
2. Not knowing about a torch's "quasi-connectivity" behavior
Wrong
Assuming a torch also powers the block directly above it, and trying to connect another circuit there.
Right
A torch only powers the block above it "indirectly" (you can't place dust on that block, but power does pass to its neighbors) — design your circuit with that in mind.
3. Trying to use a repeater backwards
Wrong
Changing some other part of the circuit instead of removing the repeater, just because the signal isn't coming through.
Right
Check the arrow on the repeater: it only carries the signal in the direction the arrow points. You can also right-click it to adjust its delay (1-4 ticks) to match your circuit's timing.
Your first automatic build: the Night Light
Let's turn the NOT logic you just learned into a real build: a lamp that stays off during the day and turns on by itself at night.
- Place the Daylight Detector. Put it on top of a block facing the open sky — it doesn't work indoors.
- Run a wire from the detector. Lay redstone dust on top of the block next to the detector.
- Bury a torch at the end of the wire. Place a redstone torch on the side of the block where the dust ends; this torch will invert the signal.
- Connect the torch's output to the lamp. Run a wire from the block the torch is on to power a redstone lamp.
- Test it. The lamp should stay off by day and turn on automatically at night. If it doesn't light up, check that the torch is buried on the right face.
Shortcut: If you shift + right-click the Daylight Detector, it inverts itself internally (detecting night instead) — then you wouldn't need the torch at all. We used the torch on purpose here, because seeing a logic gate in a real build makes "why it works" stick.
What's next?
No Man's Sky Cosmos (7.0) Guide
Station directorship, the star system map, six deep-space points of interest, hulk stripping and Expedition 23 — with an interactive explorer, checklist and salvage simulator.
Cisco's RPG: 200-Day Roadmap
The 397-quest book split into 8 phases: what to do when, a checkable 26-boss Deus Interfectorem list, how much netherite the Fell King costs, and what each New Game+ tier changes.