Roblox shows off Playtest Agent for Roblox devs to test games

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Roblox announced Playtest Agent with multiplayer support to make automated testing easier.

At its RDC 2026 keynote, Roblox announced that you can populate a food fight game with about 100 non-player characters (NPCs) who can imitate the behavior of players in a multiplayer game.

After a playtest of a game, the developer gets an analytics report of the playtest session.

Ore Jacob of Roblox tested the game on stage using a hundred characters. He had an artist create hundreds of characters in a food fight. That amounts to a test of how characters would work autonomously in a multiplayer game.