4 player local co-op a thing?

[Jornix]

Is it possible to get 4 player co-op locally? Or do I need to buy 2 copies of the game and have 2 PCs with 2 playing connect to each other? Just asking as I have 4 people in my house who would play it, but can only seem to add one player to the game locally. Also if not possible, is there any chance in the future it might be added? I love playing games like overcooked with 4 people on the same screen together locally, its great fun.

[-Cipher-]

This should work fine and has done so for us, it's usually just the controllers that are being finnicky with being recognised, once even having needed a computer restart in order to work. (Although we were mixing PS4 & Xone controllers)

[Jornix]

I have 4 PS4 and 4 XBox controllers, so Ill just keep playing with combinations, I thought only 2 people could play, and specifically bought the game to do 4 player LAN

[Indoor Astronaut]

Every combination works, just keep in mind that XInput only supports up to 4 controllers connected to one machine (so if you connect more controllers some won't work).
The game itself supports up to 4 players.

So 4 of you can play one the same machine, or if you prefer you can have 2 times 2 players on different machines.