As of today, 25 March, all CSOG prices are in US dollars: www.clearskies.eu/purchase
Customers outside of the European Union are exempt from VAT (sales tax).

In other news: work on CSOG 2.1 is in progress. The next update will be released alongside a new Arp edition. Publication is forecasted for the second half of the year. CSOG 2.1 will be another free update for all who previously purchased CSOG.