Heirloom

Heirlooms unlock new traits for sims, or higher levels of existing traits. You acquire heirlooms whenever you retire a sim, and you can also purchase them using heirloom tickets.

Retirement
Whenever you retire a sim, the sim leaves behind a random heirloom for your family.

Purchases
You can buy heirlooms with heirloom tickets. Common heirlooms cost 40 green heirloom tickets, rare heirlooms cost 40 blue heirloom tickets, and extremely rare heirlooms cost 40 purple heirloom tickets.

To look for heirlooms to buy, you can click on the blue and white shopping bag icon near the top left of your screen, next to where it displays your amount of simoleons. After tapping the shopping bag icon, you can navigate on the top menu to the option second farthest to the right, which is shaped like an heirloom ticket. There you will see the heirlooms that are currently available to buy. The heirlooms on sale refresh every 24 hours.

Viewing and selling heirlooms
When you get your first heirloom, you will also be given an heirloom cabinet to place on the wall of your home. Tapping it will open "My Heirloom Collection," where you can see all your heirlooms.

You can tap on an existing heirloom to see information on it. If you have duplicate heirlooms, you can sell one of them for heirloom tickets.