You can find many "cracked 6.31.4" versions offered on warez pages. They all are just the trial version - nothing was cracked. As to my knowledge, a cracked Gamestudio release does not exist. The only version ever cracked was an early beta. But if you find a real cracked version at a certain location, please notify the support. You can identify the version from the engine startup message (WED/About can easily be patched). We can then identify the original user from the engine file inside that version.