| Level 1 | Thriving Requirement 1: at least 20 objects or plants with the Tree Litter tag | |
| Level 2 | Wild Boar Fact Sheet | |
| Level 3 | Thriving Requirement 2: Waterlogged terrain | |
| Level 4 | Thriving Requirement 3: Food Grade 2; Fertility Level 1 (+15% fertility) | Before this level: an Observation Network (Observation Platform) in Scottish Highlands and this species released in Scottish Highlands |
| Level 5 | Thriving Requirement 4: at least 50% native plants | |
| Level 6 | Thriving Requirement 5: Mud Bath, at least 3; Fertility Level 2 (+30% fertility) | |
