Since it was surprisingly difficult for me to find, here is LimeChat 2.26 on SourceForge. It’s not the last version that can run on PPC, but it’s what I could find an active download link for. I might sift through the Wayback Machine if need be.
Runs great on my G4 with a quick setup.
![](/web/dcb_v4/patio/wp-content/uploads/2020/05/IRC-1024x718.png)