http://en.wikipedia.org/wiki/Ninety-ninety_rule http://en.wikipedia.org/wiki/Ninety-ninety_rule My point was really that people often look at something and thi

http://en.wikipedia.org/wiki/Ninety-ninety_rule http://en.wikipedia.org/wiki/Ninety-ninety_rule My point was really that people often look at something and think "Oh that's easy!". But when you actually get to the real depth of the problem it's much much more complicated and fiddly and time consuming. Off the top of my head here are a list of things you'd need to consider for developing a game: name, story/concept, title screen, credits, intro animation, implementation of gameplay/physics/loading/saving/graphics, settings / players details, user interface and GUI elements, help, input processing (mouse,joypad,joystick,touch), sound (music, ambience, effects, interface effects) ,artwork (logos, gui elements, backgrounds, sprites), repeated playability testing (is it fun, well tuned?), level creation (initial design, tweaking, testing for edge cases), utilities (level editor, sprite/animation tools), demo mode, cheats, achievements, scoreboard, installer. And of course a game over screen.