https://ldjam.com/events/ludum-dare/45/dayone

In DAY/ONE, you play as a survivor of an unknown apocalyptic event, who has just re-surfaced from a shelter. You start with nothing, no weapon, friends or resource. As you progress through the game, you will pick up new members to your party, as well as weapons to help you defend yourselves and other items to help you survive.

Controls:

Use mouse to pick up items, fight and move your party by clicking.

Left Click inventory slot - Use item.

Right Click inventory slot - Drop item.