I spent a bit of time playing the demo from Black Market Games and really enjoyed it – you should try it out. Black Market Games are Northern Ireland based company working in Derry and are one of several small local games companies taking large strides into the games industry.
InvestNI have been supportive of this community and this year are providing financial support for companies to attend GDC. I would love to go to this myself this year but I will need to work out other commitments first.
download the demo (v2) after readnig your blog. lots of PvsZ game play in there great game to come out of a Northern Ireland studio. did they used C# and XNA?