Playtests can be run "open", "closed", "beta", or otherwise, and are very common with computer games, board games and role-playing games, where they have become an established part of the quality control process.
Playtests can be run "open", "closed", "beta"-playing games. Playtests are very common with computer games-playing games. Playtests are very common with board games-playing games. Playtests are very common with role-playing games. They have become an established part of the quality control process.