Dark Physics is the fastest rigid body simulator available for our use, period. The extras like fluids and cloth aren't quite as great.
If you're going to have physics in your game then get DP. If you're not then don't. Physics in an MMO game will be difficult to integrate into gameplay, either you sync all physics on the server and use the clients simply to display the rigid bodies and suffer from crippling delays or use the physics on the client computers for visual effects only.
Anyway, it's definitely worth buying. It's a million dollar plugin that we get to use for next to no money.
By the way...
Quote: "Jukka Korhonen & Plague productions "
Claiming to have a company doesn't give you credibility. You're a hobby programmer like the rest of us.
Come see the WIP!