Spectralia

In this game you can click on apple and your clicks counter will go up.

Every 24 hours you can get a random item, container or agent.
This item you can trade, delete, exchange or sell on Steam Community Market.
Container can be deleted, opened or sold on Steam Community Market.
Agent can be sold on Steam Community Market or traded.

You can get stars by playing the game.
Those stars can be exchanged for items, deleted, traded or sold on Steam Community Market.