What's the best way to implement custom blocks with resource packs in 2025?

I want to add special blocks for my adventure multiplayer world without affecting the survival world. Is using unobtainable blocks like petrified double slabs still the way to go? If so, what blocks would you recommend to replace?
8 Replies
DJDVS
DJDVS5w ago
Modded or non modded server?
Jenki
JenkiOP5w ago
not modded, maybe some serverside datapacks
DJDVS
DJDVS5w ago
I would go with itemsadder plugin
Jenki
JenkiOP5w ago
would it work with worldedit
DJDVS
DJDVS5w ago
Jenki
JenkiOP5w ago
im looking to replace many blocks
Das_Grosse_J
Das_Grosse_J5w ago
If you’re using itemsadder you don’t need to „replace“ block ids that are already there, you can create as many new blocks as you want But it is a paid plugin fyi 20€ And about world edit, everything should work but when doing //undo with some affected blocks being ItemsAdder blocks you’ll get either mushroom blocks or some other I forgot
DJDVS
DJDVS5w ago
Also depending on the item pack, sometimes blocks will just automatically change, ik ive had the default pack and it auto changed some of the world to “mysterious ore”

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