Feels like a font issue. Do you have e.g. nerdfont installed and in use in your terminal? You could check the config for plugins that makes that style, and check which fonts are in use. Could also be powerline fonts that are needed: https://github.com/powerline/fonts

Vikunja is one option. Selfhosted, open source and Trello-like.

Jeez, I had forgotten all about LORD! Thanks for bringing back such good memories! I used to play it all the time back in the good ol’ days.