Era: Survival Colony - A co-op card game for 1-4 players by Shades of Vengeance — Kickstarter

Vampire Survivors' is getting four-player couch co-op

Outward 4 player Local Splitscreen Co-op. : r/localmultiplayergames

Stardew Valley 4 players Local Co-op. : r/localmultiplayergames

Steam Community :: Screenshot :: 6 players in 4 player coop game

Anyone else think that the game should be 4-player co-op instead of 3? Please consider this devs! : r/remnantgame

Gotham Knights will get a new 4-player co-op mode after launch

Is Lethal Company a 4 Player Game? How Many Players Can Join Lethal Company Co-op? - News

Halo 5's 4-Player Co-Op Allows for a Much More Sociable Story - GameSpot

The GAMERamble Team Plays Green Hell (4-Player Co-Op)

Gotham Knights may have 4-player co-op