Move: WASD
Run: Hold shift (running uses stamina which is restored over time)
Right click to use your flashlight (you use battery when your flashlight is on, check your battery in inventory)
Open inventory: Q (see items collected and check satiety and stamina)
Many objects can be interacted with using left click. Text on the bottom of the screen will indicate what can be interacted with.
You lose satiety over time. You die when it reaches 0.