Turn difficulty level to hard for your sever or get a more mobs (what you actually call creeps and weirdos ) or when making your map put a LOT of spawners.
Well There is no actual minecraft server client to make morecreeps & weirdos online
because you need to install the audio mod
What? No, texture packs only affect mood and color.
For more creepers, zombies, spiders, etc. Go to menu, press settings, and press easy, normal, or hard.
Some good mods are: More creeps and weirdos mod millionaire mod better than wolves mod aether mod
omnivors
The only mods i know are better than wolves, more creeps and weirdos, balkons weapons mod, and airplanes mod. I believe there are a few more though. just get technic launcher and go on the yogbox, you get mo creatures, millenaire, thaumcraft, minecolony and other stuff
You need to make a server. I suggest looking more into that.
You can make money by renting a dedicated server by renting to more than one person. You can also make money by selling to advertisers.
The spawn creeps command should work. Just press enter, type -spawncreeps, and press enter again. You can type it as many times as you want to spawn more. However, it will only work in single player mode on an AI map.
A members server is a server where you must pay on average $9.50 AUD a month (cheaper if you pay for more than 1 month at a time). On a Members server, you can access more areas, get better equipment, make money faster, have a lot more mini-games to play and a lot more.
Because that's what weirdos say! Get a Mac. Watch Mac commercials for more info.