Defeat Osmund Saddler.

Defeat Ramón Salazar.

Defeat Bitores Méndez.

Destroy a Clockwork Castellan.

Complete a request for the Merchant.

Upgrade a weapon.

Use Rat Form and traverse through a small hole.

Venture to all major regions

Fully equip a servant.

Eat the wrong mushroom.

Venture into the Gloomrot South area.

Ride a horse.

Interact with a Research Desk that has all technologies unlocked.