Here is the full list of all 14 Tribal Pass achievements.
Kill three birds at once not losing a single man.
Cross the map, having got ten circles of fire-tenders to go with you (no fighting!).
Good or bad, but you made it
Bring 30 or more men for food in a single level(second or higher)
Finish a night run without using torches.
Cross the map without starvation.
Start and finish a run (second or higher) with the same amount of people.
If you know what I mean. I know you know.
No, just a beginning
Finish a desert level without starvation
Finish a level (second or higher) without cannibalism
Start and finish a run (second or higher) with Shaman in the same body.
Complete the tutorial not losing any men (sacrifice is not a loss).
Send thirty or more tribesmen "swimming" together.