I actually won 2 games without ever killing people and it's quite skill based as much as luck based. What I preferred was getting the invulnerability hack and the teleportation and maxing out those. If you can't max out those hacks it's ok, I was able to win with a maxed out "shield" hack and a lvl 1 teleportation one. Once you have all of this, based on your situation, if there is very little people, rush for the crown as soon as it spawns and run into buildings and break out through windows in order to stop being predictable by running straight to the roof and keep on doing parkour on other buildings like it's Mirrors Edge or Dying Light. This achievement is harder to get when there's 10+ people in the circle and in open space. I'd recommend using the crown for bait when you're in that situation and helping everyone else kill the guy with the crown and snatch it when there's at least 8 or less people alive. Bonus tip: when you have the crown, make sure you have your melee weapon out as you run faster with it and keep on running and sliding. Good luck!