Encumbrance

Some things are heavier than others, and Irrupt makes you feel it — a pack has limits, no matter how strong the back carrying it. A handful of bulky materials — dirt, sand, gravel, stone and its many cousins, and a few others besides — don’t stack all the way to 64 while you’re personally carrying them. You’ll notice it the first time you mine a wall of stone and watch it spread itself across several slots instead of piling into one.

What Actually Changes

Only your own inventory (and your offhand) is affected. Chests, shulker boxes, hoppers, minecarts — anything that counts as storage — hold bulky materials exactly like vanilla, no limit at all. Encumbrance isn’t about how much the world can hold; it’s about how much you personally can haul at once. Stockpile everything you want at home. It’s the walk back with it that’s limited.

You Won’t Lose Anything

If you pick up or mine more than you can carry, nothing vanishes and nothing silently fails. The game automatically tidies what you’re holding into as few slots as it can, and anything that genuinely doesn’t fit drops at your feet instead — never destroyed, just left behind for you to grab in a second trip or leave for someone else.

Not Everything Gets Heavier

This isn’t a blanket nerf — a few things actually carry better than vanilla. Potions, which normally don’t stack at all, can be carried in small stacks here. It’s a targeted system: bulky, mundane materials take up more room than they should, while a few genuinely useful items are made more convenient to carry than vanilla ever allowed.

Nothing Unique Gets Touched

Anything with its own identity — enchanted gear, named items, written books, Iron Notes, or anything else that isn’t just plain, identical stuff — is left completely alone, even if it shares a material with something that is capped. Two identical bare stone blocks get bundled together; two different enchanted swords never will, no matter how similar they look.

Manage It Yourself

The auto-tidying is convenient, but it also means a stack you deliberately split apart can get quietly merged back together the next time you touch your inventory. If you’d rather your bag stay exactly how you arranged it, run /autostack off — your bulky materials stop being auto-limited and auto-consolidated entirely, and your manual splits stick. /autostack on turns it back on whenever you want the convenience again.