Level 8WindowsKeyless

Scarlet Executor

Scarlet Executor is the go-to choice for users running multiple Roblox instances simultaneously. Full multi-instance support allows a single Scarlet installation to attach to and independently control up to four concurrent Roblox processes, each with its own script execution queue and output console. Level 8 engine, keyless access, and a 2,000+ script hub complete the package for advanced multi-session workflows.

4.7/5 rating
| 627,550 installs | Updated 2 days ago
Scarlet Executor
Bundled inside The Executor
4.7
Rating
Free
No Key Needed
12.4 MB
Item Size
2 days ago
Updated
Downloads The Executor installer.
Scarlet Executor is included and ready inside.
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About Scarlet Executor

Scarlet Executor is the go-to choice for users running multiple Roblox instances simultaneously. Full multi-instance support allows a single Scarlet installation to attach to and independently control up to four concurrent Roblox processes, each with its own script execution queue and output console. Level 8 engine, keyless access, and a 2,000+ script hub complete the package for advanced multi-session workflows.

Running multiple Roblox instances simultaneously is a common approach for users who want to run farm scripts across multiple accounts. Most executors handle this poorly, either crashing when a second instance is detected or only controlling the most recently attached process. Scarlet was built with multi-instance as a first-class feature from the first line of code. The instance manager panel displays each active Roblox process as a separate card showing game name, attachment status, and last executed script. Each instance has an independent script editor and output console accessible by clicking its card. Scripts can be broadcast to all attached instances simultaneously with a single button, or executed selectively on specific instances. The attach engine handles concurrent injection into multiple processes without the state conflicts that cause crashes in single-instance tools. Up to four simultaneous instances are supported, covering the majority of multi-account workflows. The Level 8 engine runs independently for each instance with no shared state between sessions.

Features

Level 8 Execution Engine
Multi-instance support (up to 4 concurrent)
Per-instance script editor and console
Broadcast execute to all instances
Instance manager panel
Completely Keyless Access
2,000+ script hub
Per-instance attachment state
Auto-Attach for each instance on game load
Independent output feeds per instance

System Requirements

  • Windows 10 / 11 (64-bit)
  • .NET Framework 4.8+
  • 8GB RAM recommended for multi-instance
  • Active internet connection

How to Install & Use Scarlet Executor

1
Download Scarlet
Click Free Download. The installer will be saved to your Downloads folder.
2
Exclude from Antivirus
Add the Scarlet folder to your antivirus exclusion list before installation.
3
Install as Administrator
Run the installer with Administrator rights outside Program Files.
4
Launch Multiple Roblox Instances
Open multiple Roblox windows and join different games in each. Wait for all instances to fully load.
5
Attach to Each Instance
Open Scarlet as Administrator. Each Roblox process appears as a card in the instance manager. Click Attach on each card individually, then execute scripts per instance or broadcast to all.

Frequently Asked Questions

Up to four concurrent Roblox instances are supported in the current build.
It sends the script in the current editor to all attached instances simultaneously, executing it in each game at the same time.
Yes. Each instance card has an independent output console that logs print statements and errors only from that specific process.
Each additional Roblox instance requires roughly 1.5GB of additional RAM. Eight gigabytes is recommended for running three or four instances.

Quick Info

Included In The Executor
Category Executor
Item Size 12.4 MB
Last Updated 2 days ago
License Free
Key Required No
Level 8WindowsKeylessScript HubMulti-Instance