i tried it with a friend once a couple years back....we used a free game designing program u can dl off the internet called blender
. we had a whole thought out long story with lotsa characters and a whole buncha weapon and map concept sketches and everythin
. my friend made some rele nice 3d models of stuff too....the coolest were the flashlight and hand grenade (and a whole 3d version of a mp map)
. but then once we tried to animate everything....it was like OMFG woulda prolly taken us MONTHS to learn all that code, even with the help of the website ><. the modeling dus take lotsa time to learn how to do, but the code was just overwhelming. nyways there are MUCH simpler programs out there for making even small 2d sidescrollers n stuff.....search something like "free game creation tools" r sumthin like that on google and i KNOW ul find some ^^.