Democracy 2 has been released by Positech. While our games focus on the battles called elections, Democracy 2 focuses on running the government. Cliff Harris, the lead game designer, has done great work with the interface. I love how the game abstracts out to a common interface for dealing with various things, and spatializes it. Here is a screenshot:
Check it out!
Looks very complex, even more complex than Ars Regendi. May one also solve political tasks there, like deciding about abortion or socialisation of banks?
You should ask Positech (at the link to Democracy 2 above).