In 2021, we've seen a lot of impressive multiplayer co-op games, such as "Two-Player Trip", "Revenge of blood", "Heroic Shrine" and so on. They have also won the hearts of players and are regulars on major sales charts.
Mike Booth, the developer of the classic co-op shooter "The Road to Survival", recently gave an interview to foreign media and talked about his ideas.
There aren't enough good co-op games to play right now. I think the challenge is that it's hard to do a co-op game well. Because you have to be sure from the very beginning of the game's development that this is co-op. The game is designed to be collaborative to pass the level, not in a punitive way, but in the way the player wants to play, which is enjoyable.
In addition, Mike feels that the pandemic may be the reason why everyone is more inclined to play games online, but it has only accelerated what has already happened. The need for online games has always been there, and the need to go back to team deathmatches in Doom and Quake has been going on for a long time and is becoming more popular.
Source: rockpapershotgun