Hi all. How do I invite a player by username whom I haven't played with before? I can only figure out how to invite players I've already played with, and to invite new players be email. My friend already has an account and username, but we've never played together. How do I invite him? Thanks.

If you're inviting a friend, just type in his e-mail address into the e-mail address box. It will connect with his WarLight account.

If you want to invite someone you met on the forums or elsewhere on the site, you can click on their name to bring up their profile and click "Add to Invite List". Once they're on your invite list, they'll show up in the list of players you can invite from.

I was trying to do this, too. I don't know his email, only the alias 'askheaves'. It would be awesome if there was a search/addToInviteList by alias.

If you want to vote for this feature:
http://warlight.uservoice.com/forums/77051-warlight-features/suggestions/2064855-search-users-by-alias

they have to go to their public profile and post that link, then you can use that to invite them to your invite list..