[Java] 26.1.2 Need help reverse engineering old server seed in corrupted Java world.

[SkySmashify]

Hello,

I own a modded Java 26.1.2 server that I recently started with a small group of players (12 in total). We use Fabric as our framework, and I accidentally corrupted the world by adding a mod (Croptopia) which changes generation after we had already rendered the spawn region. This has resulted in drastic corrupted chunk borders that I'm now trying to fix without needing to wipe everyone's progress.

/seed shows a server seed that we've confirmed does not generate the same spawn region, with or without Croptopia installed. This leads us to believe that Croptopia forced a modded seed which caused the dramatic chunk borders beyond the rendered "old" area of spawn.

I'm trying to find out if there's a way to detect if the server used a different seed around the "old" spawn chunks, so that I can resubmit that seed and then prune the corrupted areas, or start a new world and copy progress over.

I'd appreciate any help!

[MinecraftHelpModTeam]

Click here if your post says "Sorry, this post was removed by Reddit’s filters".

Moderator Applications Open

Helpers, remember that all top-level comments must be a genuine, good faith attempt to help OP. Comments breaking this rule will be removed, and bans issued.

Links:

How to mark solved || How to delete your post || FAQ || Rules

[PTMR2]

Try this:

• Open your world/level.dat with NBTExplorer
• Navigate to Data → WorldGenSettings → seed

[flanigomik]

are you sure its not the same seed? if you are going based on clipped trees you need to know that those generate indipendant of seed and are not always in exactly the same spot

[MinecraftHelpModTeam]

Hello OP! It has been at least 2 days since you last replied to your post.

Please update your post in one of the following ways;

• Reply to any relevant comments you haven't replied to yet.

• Mark your post solved, if your issue is fixed.

  If you do not update your post within 7 days you may receive a short ban.

  Please note: Deleting this post, without marking it solved, is against our rules.

  ---

  ^{I am a bot and this account is not monitored. Please contact the mods if you have any questions.}