The Bard's Tale IV: Barrows Deep from inXile Entertainment released for Windows in September after a successful Kickstarter, they say they're continuing to work on the Linux version.
[…] we also continue to work on the Mac and Linux versions, as well as a few other nice things that we can´t talk about yet.
Overall, it seems to have gained a rather mixed reception with both users and other critics alike. Hopefully a lot of the issues will be solved by the time we're able to get our hands on it. As always, we will keep an eye out and let you know about any updates on the Linux version.