For Forging an alliance you must create "rubbery" items found in locked chests in the swamplands. You can also trade Tar Sap, and buy 'latex services'.
When you have filled out the Reputation (check with leader), they will send you to defeat enemies around the fortress area.
After defeating 5, return and they will take you on a quest to get an item. That item can unlock the fortress gate!
I hope this helps give you some clue for proceeding!
The one with lots of goo pools and bugs?
Also, during boss fight. If you loose and end up with full corruption after 'leaving' off the plinth, you don't get the 'bad end' and instead get teleported back to camp as normal.
So: 1. is that intended? 2. Since you now have the new fancy suit, is the helmet meant to not be visible?
No, the other one. It has a dock with a serpent and a locked rubber chest.
Please make sure you update to v0.109, and this error may hopefully have been fixed. (you will need to repeat action, it cannot fix on a save where it's already happened, only prevent it in future)
(and yes, helmet is not meant to be kept)
