What do Egg Heist collectibles do?

The stand is a collection display case, and filling it completely is a goal in its own right. Collectibles turn up as loot during raids, mixed in with everything else you carry out.

Extracted loot goes into your backpack and stays there until you move it to the inventory yourself. If a collectible seems to have vanished after a run, check the backpack first.

The rest of a haul works differently. Most extracted items are turned into currency, either sold at the shop or converted automatically when you exit. Relics and essences also upgrade your Egg Heist talents, and they can be sold by mistake from the inventory's All tab. Collectibles are the part of the haul meant for the stand.