It worked pretty well after some experimentation!
I would recommend the elder's dialogue not disappear so quickly, and the villagers should remember their tasks between waves instead of automatically going back to idling/farming.
When the villagers were gathering or building, there was not much feedback on how long it would take, so the first time I thought it might be stuck.
I wished combat were a bit slower so I could get a feel for what was working.
Great work going for the ASCII style and pulling it off!