Concordia, the highly acclaimed and popular strategy game designed by author Mac Gerdts, is getting an official solo expansion appropriately titled Concordia: Solitairia which is being published by PD-Verlag. Although not finalised, the upcoming expansion will be compatible with any of the available maps and consists of a deck of cards and a die. In a recent development diary posted on Board Game Geek, author Mac Gerdts described the Solitaria expansion:

“There will be 3 skill levels: standard (casual play), advanced (for a challenge), and expert (don't mind to lose?). The expert opponent is hard to beat (though not impossible). It is also definitely harder to win on smaller maps like Corsica and Creta. Pulling out the win on Britannia and Italia is an easier task. It has been tested with salt from Salsa and works fine that way. Not sure about the Forum cards yet. The fishmarket from Balearica should work, but here we need more tests as well.
It is very important that the solo mode of SOLITARIA reflects how Concordia works and feels. You have to be efficient. You will face surprising reactions of your opponent.

Solitaria is playable within 30 minutes. It's quite fast because your opponent is't involved with micro-management like managing his resources. But your opponent is building houses, building and moving his colonists around, purchasing cards, and maybe grabbing the Concordia card before you.”

At the time of writing publisher PD-Verlag has not released any official information regarding a potential release date for the Concordia: Solitaria expansion. table for ONE will update this news article as more tangible information becomes readily available.