If you like your “escape the room” type games, you may be interested in this multiplayer game in early access.
They are looking for feedback so the game can be polished.
Mad Experiments: Escape Room Beta
You can get a key from the devs discord, or via MMORPG
"Mad Experiments: Escape Room is a multiplayer narrative escape game.
Play with up to 6 players or solo
Explore and interact with many items to uncover the secrets of the rooms
Solve puzzles, riddles, and participate in strange experiments to get out of the room
Use our Discord channel to find other players and communicate with your friends"
The developer of the beautiful Mad Experiments: Escape Room would very much like Mac owners to help test the beta builds.
Unlike traditional puzzles and escape the room type games this allows for you to co-op with friends.
The author seems to focus on team play so expect more puzzles and rooms you can share.
This game is built with Unity and is a 3D experience, so gamers and devs used to games made with it will have an advantage looking for bugs and glitches.
To get a key from the developer all you need to do is fill out your email address and a user name, and decide if you want to join the extended beta testing group.