How many friends can join an online farm on PC?

Current desktop versions support up to eight players on one farm.

Does it have split-screen?

Yes. Split-screen co-op is available on one PC.

Can I use a controller?

Yes. Stardew Valley supports controllers on PC.

Yes. Stardew Valley is sold on GOG as well as Steam; install the copy you own.

Does Stardew Valley have multiplayer?

Yes. Stardew Valley supports up to 8 players. You can host a game on your own PC and play together on one PC with phones or extra gamepads as controllers. It also supports co-op play and local split-screen or couch co-op.

Stardew Valley controls

Native controller support

This game natively supports a controller — no setup needed.

Default bindings for every input method Stardew Valley supports. These are the game's own defaults — anything you have remapped will differ.

Mouse & keyboard

Default keyboard and mouse bindings.

Every key is rebindable in the game's options.

Movement — Mouse & keyboard
Action	Default input
Move	`W, A, S, D`
Run toggle	`Left Shift`

Interaction — Mouse & keyboard
Action	Default input
Use tool	`Left Mouse`
Action / talk / open	`Right Mouse`

Inventory — Mouse & keyboard
Action	Default input
Open inventory	`E / Esc`
Tools / items	`1–0, Mouse Wheel`

Interface — Mouse & keyboard
Action	Default input
Journal	`F`
Map	`M`

Multiplayer — Mouse & keyboard
Action	Default input
Chat	`T`

Source: Stardew Valley Wiki — Controls

Controller

Default gamepad layout, using the standard face-button names.

Xbox layout shown; PlayStation equivalents are used automatically.

Movement — Controller
Action	Default input
Move	`Left stick`
Run	`Left stick (hold B)`

Interaction — Controller
Action	Default input
Use tool	`X`
Action	`A`

Inventory — Controller
Action	Default input
Cycle toolbar	`LB / RB`

Interface — Controller
Action

Menu	`Y`
Journal	`Back/View`

Y

Journal

Back/View