I also really like asymmetrical games. In particular the various Tafl[0] reconstructions. Some are unbalanced, but some are very balanced and fun to play as either attacker or defender. There are various versions with rule variations to accommodate various board sizes too.
I have not played Unlur. Looks like a cool hex variant. I like the initial phase where who plays white is decided. It is a neat way of working that out.
Thanks for the suggestions! Guest accounts are definitely a necessity. I had been looking at some asymmetrical games like Adugo and Viking Chess, myself.
It is very much appreciated that I don't have to make an account to play. That is one of the most annoying thing on sites like these to play games.
[0]: https://www.iggamecenter.com/en/rules/unlur
[1]: https://www.iggamecenter.com/en/rules/arimaa