Full list of all 12 Risk: Factions achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
You played 5 games on Xbox LIVE.
You killed 100 military, cat, robot, yeti and zombie units.
You owned everyone by controlling 5 capitals.
You completed the human, cat, robot, yeti and zombie campaigns.
You traded 10 stars for 30 troops!
You got an objective before everyone else.
You have successfully defended 5 attackers with 1 troop.
Defeat someone over Xbox LIVE who has earned the Man Up! achievement.
Achieve 10 super overkills.
Win a game on each map in custom game.
Win a 5 player ranked Command Room game on Xbox LIVE.
Win 10 ranked games on Xbox LIVE.