Installation_SteamCMD_and_AtlasServer.ps1

# Made by ZoRo
$AtlasDir = "A:"
$appID = "1006030"

# Creating Steam Folder and downloading SteamCMD
Write-Host "Downloading SteamCMD"
$url = "https://steamcdn-a.akamaihd.net/client/installer/steamcmd.zip"
New-Item "$AtlasDir\SteamCMD" -type Directory -ErrorAction SilentlyContinue
$output = "$AtlasDir\SteamCMD\steamcmd.zip"
$start_time = Get-Date
Invoke-WebRequest -Uri $url -OutFile $output
Write-Output "Time taken: $((Get-Date).Subtract($start_time).Seconds) second(s)"

# Expanding SteamCMD.zip (Open the zip file and extract)
$SteamZip = "$AtlasDir\SteamCMD\steamcmd.zip" # The file name to extract
$SteamDestination = "$AtlasDir\SteamCMD" # The path to extract the file to
Remove-Item $AtlasDir\SteamCMD\steamcmd.exe -ErrorAction SilentlyContinue # Just in case this was alredy run once
Add-Type -assembly "system.io.compression.filesystem" # Required class to unzip the file
[io.compression.zipfile]::ExtractToDirectory($SteamZip, $SteamDestination) #unzip the file

# Installing Atlas Server
Write-Host "Installing Atlas. This will take a WHILE..." -ForegroundColor Yellow
powershell.exe "$AtlasDir\SteamCMD\steamcmd.exe" +login anonymous +force_install_dir "$AtlasDir\AtlasServer" +app_update $appID validate +exit