Civil has reached version 0.80, woot! This release has debian and redhat packages available, so I hope we will get some feedback, chakie and TheCorruptor have worked really hard to get so far. Unfortunately we almost immediately found a couple of severe bugs, I do hope people won't be too disappointed and instead see that it has a great potential of being a very playable game!
Mantis seems ok for small enough projects, but I really dislike how it doesn' integrate into the SCM at all - one has no idea what commit fixed a certain bug. Also, it doesn't keep a very deep history of the bug's state, only the most recent state.