| Level 1 | Thriving Requirement 1: at least 10 objects or plants with the Grass tag | | |
| Level 2 | Thriving Requirement 2: at least 5 objects or plants with the Spreading Crown tag; Sable Antelope Fact Sheet | | |
| Level 3 | Release groups and release to the wild | | |
| Level 4 | Thriving Requirement 3: Food Grade 2; Fertility Level 1 (+15% fertility) | Before this level: an Observation Network (Observation Platform) in Great Rift Valley Reserve and this species released in Great Rift Valley Reserve | |
| Level 5 | Thriving Requirement 4: at least 4 objects or plants with the Rocks tag | | |
| Level 6 | Thriving Requirement 5: African Savannah Social Group; Fertility Level 2 (+30% fertility) | | |
