Achievements are in: 17 to unlock, 1000 points in total.

They cover the whole tunnel: death gates passed, dying at one, Speed and money earned, rebirths, eggs and pets, survival upgrades and trading with another player.

Your existing save counts. The furthest gate you reached, your rebirths, Speed, money and pets unlock on your first launch, nothing to redo.

The hardest four: pass all 100 gates, buy every survival upgrade, reach 10,000 Speed and hatch a legendary pet.