No biter spawner on Nauvis

[Sylver]

I need to capture a spawner on Nauvis to progress the tech tree to Captive biter spawners but cannot find any on Nauvis.
I am playing on peaceful + no enemies but I understood that spawners should still spawn and i have explored unexplored chunks around my base without luck.

- Save was started July 2025
- Started SpaceAge recently converting my old save
- Went Fulgora>Vulcanus and now Gleba

I had no issues with a converted save the previous planets but now I feel stuck. It's especially frustrating since I started SpaceAge to transform my existing base with the new technologies and now I don't have a pre-space age save to go back to.
I understood this was a problem with really old saves since you could turn off spawners entirely but that's not the case here? Or is that all non-space-age saves?

I'd rather not use console commands since I care about the future achievements.
Is there a mod/method that fixes the save without breaking achievements?

Attached my save

[eugenekay]

You will probably have to use the /editor command to place a Biter Spawner entity somewhere on the map, or edit the Map Gen Settings to enable "Enemy Bases" for new chunks. 29709 has a few techniques for modifying save files / clearing the "Commands were used" flag, via a Hex Editor or by using a third-party program. Whether this counts as "cheating" is largely subjective...

Good Luck!

[Atraps003]

attached save should be fixed

[Sylver]

Oh wow thank you for the quick replies.

attached save should be fixed

That does fix my problem thank you very much! You saved my Sunday.