For developers, running multiple instances is a standard part of testing multiplayer features within the editor:
: Running multiple clients is hardware-intensive. Users often encounter performance issues like lag or visual ghosting if their monitor's refresh rate does not match the game's frame rate. Multi Roblox
For those still able to use multi-instance features, responsible management is key: For developers, running multiple instances is a standard
The landscape for multi-instance launching has shifted recently due to Roblox platform updates. Multi Roblox