So me and my brother recently got Syndicate: American Revolt running on DOSBox, complete with multiplayer functionality (which took some work, because you need to load a certain set of obscure DOS TSRs that don't come with the program to get it to work). Anyway, that game is FUN. I highly recommend you pick up a copy and give that game a spin. I'd even be willing to post a guide to walk you through the setup process, just so you can get a taste of it (aren't I generous?).