| Level 1 | Thriving Requirement 1: at least 20 objects or plants with the Climbable tag | | |
| Level 2 | Thriving Requirement 2: Tool Puzzle Feeder, at least 2; Sumatran Orangutan 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 Sumatra Reserve and this species released in Sumatra Reserve | |
| Level 5 | Thriving Requirement 4: at least 50% native plants | | |
| Level 6 | Thriving Requirement 5: Fixed Roller Feeder - Large, at least 2; Fertility Level 2 (+30% fertility) | | |
