noun
playtest; playtesting
Wasei-eigo term for testing a game before its official release, often by players or developers.
wasei-eigo (Japanese-coined English), from test play
新作ゲームのテストプレイに参加した。
I participated in the playtest of the new game.
開発チームは今週テストプレイを行う予定だ。
The development team plans to conduct playtesting this week.