[Updated 4:30 p.m. with comment from CEO] Seattle mobile-game startup Z2Live’s latest venture round is worth about $2.5 million, according to a regulatory filing today. Z2Live had previously announced a Series B investment from Draper Fisher Jurvetson, joining previous investor Madrona Venture Group, but hadn’t disclosed the amount. Z2Live is focusing on social gaming for mobile devices, with an initial game called “Trade Nations.” The company is led by CEO David Bluhm, a startup veteran previously of Medio Systems, and CTO Damon Danieli, a Microsoft veteran who designed some of the core features of Xbox Live. Madrona had previously invested a total of $4 million, including at the seed stage in 2008. Bluhm notes that the round was more for strategic reasons than operating cash, as Z2Live “turned very comfortably profitable back in November.”