Can you play Role Play/FloodMod in single player?

WAZZAPPPP I wanted to know if you can play multiplayer mods such as Roleplay and FloodMod in single player? Its not that im a lonely old gimp, I just want to play it on single player to test things out… is it possible?

Yes, just change the default gamemode in the Singleplayer Options tab (In Play singleplayes) to one of you gamemodes (Must be intallled NOT downloaded from a server) and select a map and BOOM there’s your gamemode