They Are Billions
Xbox One
- 1,786 Achievements Earned
- 289 Players Tracked
- 26 Total Achievements
- 13,183 Obtainable EXP
- 1,000 Gamerscore
- 7 100% Club
Win a Survival game (Score Factor >= 200%) without using Attack Towers like Ballista or Executor.
55
5.19%
Very Rare - 862.00 EXP
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