| Level 1 | Thriving Requirement 1: Water Surface Area | |
| Level 2 | Thomson's Gazelle Fact Sheet | |
| Level 3 | Thriving Requirement 2: at least 8 objects or plants with the Shrub tag | |
| Level 4 | Thriving Requirement 3: Food Grade 2; Fertility Level 1 (+15% fertility) | Before this level: an Observation Network (Observation Platform) in Tanzania Reserve and this species released in Tanzania Reserve |
| Level 5 | Thriving Requirement 4: at least 10 objects or plants with the Grass tag | |
| Level 6 | Thriving Requirement 5: African Savannah Social Group; Fertility Level 2 (+30% fertility) | |
