[2.1.11] Biter expansions still sometimes generate worms only
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Gameboyaac
- Manual Inserter

- Posts: 2
- Joined: Wed Jul 15, 2026 3:42 pm
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[2.1.11] Biter expansions still sometimes generate worms only
I vaguely remember seeing this as patched, but apparently not. Biters still sometimes generate worm only bases on expanding. Suggested fix: walk without rhythm as to not attract the worms.
- Attachments
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- Worm only base:
- worms.jpg (1.23 MiB) Viewed 724 times
Re: [2.1.11] Biter expansions still sometimes generate worms only
I too have noticed and found this quite irksome on 2.0.77
Re: [2.1.11] Biter expansions still sometimes generate worms only
134800 is still "Pending"
Re: [2.1.11] Biter expansions still sometimes generate worms only
Hello, thanks for the report,Gameboyaac wrote: Wed Jul 15, 2026 3:48 pm I vaguely remember seeing this as patched, but apparently not. Biters still sometimes generate worm only bases on expanding. Suggested fix: walk without rhythm as to not attract the worms.
Can you provide a save game?
Ideally one with the base and one before the expansion happened?
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Gameboyaac
- Manual Inserter

- Posts: 2
- Joined: Wed Jul 15, 2026 3:42 pm
- Contact:
Re: [2.1.11] Biter expansions still sometimes generate worms only
Klonan wrote: Wed Jul 15, 2026 6:20 pmHello, thanks for the report,Gameboyaac wrote: Wed Jul 15, 2026 3:48 pm I vaguely remember seeing this as patched, but apparently not. Biters still sometimes generate worm only bases on expanding. Suggested fix: walk without rhythm as to not attract the worms.
Can you provide a save game?
Ideally one with the base and one before the expansion happened?
I can provide 2 saves, my most recent and one on the day it occurred, although the nest is already cleared unfortunately. I've marked where the base was in the attached screenshot:
- Attachments
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- Where the base WAS
- Screenshot 2026-07-17 125607.png (109.58 KiB) Viewed 515 times
Re: [2.1.11] Biter expansions still sometimes generate worms only
They still can be helpful, please upload them here and I can check themGameboyaac wrote: Fri Jul 17, 2026 4:05 pm I can provide 2 saves, my most recent and one on the day it occurred, although the nest is already cleared unfortunately. I've marked where the base was in the attached screenshot:
Re: [2.1.11] Biter expansions still sometimes generate worms only
Discovered worms only expansion in my game in version 2.1.12.
World was created in version 2.1.7 with default settings but I was playing on 2.1.12 when worms occured.
Worms spawned next to iron ore just outside southernmost wall.
There is 2.5h gap between those saves, I have no idea, when did worms spawn.
World was created in version 2.1.7 with default settings but I was playing on 2.1.12 when worms occured.
Worms spawned next to iron ore just outside southernmost wall.
There is 2.5h gap between those saves, I have no idea, when did worms spawn.
- Attachments
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- _autosave2.zip
- first save with worms expansion present
- (14.46 MiB) Downloaded 3 times
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- 2.1.zip
- latest save before worms expanded
- (14.17 MiB) Downloaded 5 times
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- factorio-current.log
- (13.79 KiB) Downloaded 4 times



