This is an early version of the game. The Inventory Panel is mostly feature complete. Tooltips on the Inventory items are not yet as detailed as Stardew Valley.
The games internal Calendar is working, but the nice Stardew Valley time gauge that moves through the course of the day is not yet working.
The energy bar is working and it decreases as the player uses tools.
The hoeing of soil and the planting of seeds are both working. However, the maturing of crops across multiple days is not yet working.