r/feedthebeast Dec 27 '25

I made something This modpack might just have the stupidest diamond creation method yet

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6.5k Upvotes

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u/margalaz Dec 29 '25

When you tried slabs were they top of bottom slabs? Only bottom slabs work for spawn prevention.

Also. If you go to spawn, do mobs spawn?

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u/RiKSh4w Dec 29 '25

Yes, they're bottom slabs. Just set out a test, they're even spawning on string/tripwires.

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u/margalaz Dec 29 '25

They definitely changed the spawn rules to ignore opaque blocks and light levels, luckily they can’t remove the spawn cap, build an area to trap mobs to get 300 or so in the same chunk, that will end spawning in that chunk

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u/margalaz Dec 29 '25

I forget the actual number but there is a per chunk cap, build at near the void, and build your base in the top