Killed 10 enemies using Sneak Kills.

Beat the Womb for the first time

Found a potential ally in The Marrow.

Upgrade your house.

Catch 24 different fish.

Craft 15 different items.

Reach a 5-heart friend level with someone.

Catch 10 different fish.

Hold 55 or more pennies at one time

Launch yourself into space.

Survive a long fall with just a sliver of health remaining.

Build a suitable house for your first town NPC, such as the guide, to move into.