AAAAAAAAAAAAAAAAAAAAAA==: Tier 1. - Beginners Age
AAAAAAAAAAAAAAAAAAAAAQ==: Tier 2. - Steam Age
5Q8B8WuqTi6C53qCM2SULw==: Tier 3. - Steel Age
AAAAAAAAAAAAAAAAAAAAAg==: Tier 4. - Industrial Age
AAAAAAAAAAAAAAAAAAAAAw==: Tier 5. - Chemistry Age
BeYoHyOiRGiIlu4h2OeYXw==: Tier 6. - Fusion Age
