They Are Billions
Xbox One
- 2,272 Achievements Earned
- 358 Players Tracked
- 26 Total Achievements
- 12,225 Obtainable EXP
- 1,000 Gamerscore
- 11 100% Club
Win a Survival game (Score Factor >= 200%) without using Attack Towers like Ballista or Executor.
55
5.31%
Very Rare - 859.00 EXP
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