How To Use ROBLOX Studio Simulator to Test Multiplayer (Splitscreen)
This video shows you how to use the little-known game simulator for ROBLOX Studio. Using the simulator allows you to play and test your game with multiple players on just a single computer before uploading a glitched place to the ROBLOX website. The simulator can be run splitscreen or on multiple monitors with up to 8 players plus a neutral server view.