I'm quite sure it's possible to make a lot of different types of games with the Lawmaker engine, because even though it may seem more suited for fps games, there's really no actual limitation which would prevent one from programming/building a RPG, a casual game or whatever with it. (not sure about 2D qualities though) Same goes for Torque and same goes for 3dgs... Personally I don't really like programming with the Torque engine nor Lawmaker engine, but that's moreso because I'm spoiled with the ease of 3dgs's c-script.

Cheers