Minecraft guides

Practical write-ups on commands, datapacks, building and server performance — each one paired with the tool that does the work.

Commands & Data Building & Resources Server & Performance Troubleshooting

Why Minecraft says \"Too Expensive!\" — and the anvil order that avoids it

The prior-work penalty doubles every time you touch an anvil. Here is the rule behind it, and how to sequence combines so a full enchant set never hits the 40-level wall.

The /give command after data components: what replaced NBT tags

1.20.5 replaced item NBT with data components, and most /give snippets online are still written the old way. Here is the mapping from the tags you know to the components that work now.

Nether portals that link where you want them to — the 1:8 rule in practice

Portals do not pair by coordinates alone. Here is the search box the game actually checks, why your portal keeps connecting to the wrong one, and how to force a clean pair.

Torch spacing for spawn-proofing: the exact number, not a guess

Hostile mobs need block light 0. Torches emit light 14 and lose 1 per block. That gives a precise grid — and a different answer for floors, ceilings and open builds.

Best Y level for every ore after the world height change

Diamonds are not at Y=11 any more. Each ore now has a triangular distribution with its own peak, and a few have a second band. Here are the real numbers from worldgen.

Ominous Bottles and Bad Omen I–V: what each level actually changes

Bad Omen no longer starts raids on its own. Here is what the five Ominous Bottle levels do to trial chambers and raids, and the give command for each.

The gamerules worth changing — and the defaults people get wrong

There are over 40 gamerules and most guides list them without saying which matter. Here are the ones that change how a world plays, with their real default values.

Whitelist, ban and op: the server commands that behave differently than you expect

Whitelisting does not kick players already online, /ban needs a reason to be useful, and op level matters more than the op list. The details that bite server owners.

Trial chambers: making spawners ominous and what the vaults actually drop

Ominous vaults hold the Mace and Heavy Core, but only if you make the chamber ominous first. Here is the sequence, the key economy, and what solo versus co-op changes.

/execute: why as/at order matters and how store actually works

Most broken execute chains come from confusing who runs the command with where it runs. Here is what each subcommand changes, and the order that fixes it.