Hi all,

a question bounces in my head from some time.

Copyright laws are different by nation to nation, but generally which is the border line to break a copyright?

Suppose to make a game that is very similar to an other come out in the past, e.g. a Pacman clone or a Space Invaders clone, but nothing from original titles are grabbed and maybe they're not made in 2d, but in 3d. The titles aren't "Pacman clone - the return" or "Space Invaders - they did it again", and not also "Pocman" or "Space Evaders" (maybe this last could be fun for some "creative financers" that need to escape from earth :D). Finally suppose to call these some thing like "Popcorn, fruit and ghosts" (or the acronym: "PFG") and "Kill all enemy" (or the acronym: "KAE").

In this case (not grab-> all self-made) and no references to original titles, but with a game that feels very similar to "ispiration ones"... they could be sold to somewhere like "Valve's Steam"?

Regards, Kjow