Not sure about this game specifically, but most of the modern demo's are pretty good at avoiding cracking. Sometimes its as easy as setting your date back on your system time to play again without it stating that your demo time has expired, but its more common these days for the demo to have a counter built into the source to track play time and then to cancel game play when the limit has been reached. If you dont store important data on your system you could use a re-install like ability of a system restore point to play it over and over again sometimes. This requires however that you create a restore point before you start the timer or that you revert your system back to say yesterday when the game worked or yesterday when the game demo wasnt even installed yet, then reinstall the demo and play it to the time limit again, and repeat this process as many times as you want to keep playing the demo. BUT its more work to do this over and over again and you should just buy the game to avoid making extra work for yourself. Any real crack to the game would be illegal....but restoring your system back to a point when it worked isnt illegal, but its bypassing the demo's intent to limit play and get you to buy it so they make their $$$.
