Need for predictable random generator

Question

I\'m a web-game developer and I got a problem with random numbers. Let\'s say that a player has 20% chance to get a critical hit with his sword. That means, 1 out of 5 hits

Answer 1

Reaction on: "The problem is I got very bad real life results -- sometimes players get 3 crits in 5 hits, sometimes none in 15 hits."

You have a chance of somewhere between 3 and 4 % of getting nothing in 15 hits...