Run Installed Steam Game from Powershell

steam-run.ps1

function steam-run {
  param(
    [Parameter(Mandatory = $false)][string]$Name
  )

  # steam installed directory containing the .acf files
  # replace with your path here
  $steamInstalledPath = "C:\Users\opari\scoop\apps\steam\current\steamapps"

  # run by game name specified
  if ($Name) {
    $acf = Get-ChildItem $steamInstalledPath | Select-String -Pattern $Name | Select-Object Filename -First 1
    $steamGameRaw = Get-ChildItem $steamInstalledPath | Select-String -Pattern 'name' | Select-String -Pattern $Name | ForEach-Object line
    $steamGame = $steamGameRaw -replace "`"|name", '' | ForEach-Object { $_.trim() }
  }
  else {
    # display list of game if no argument specified
    $count = 1
    $steamInstalledGameRaw = Get-ChildItem $steamInstalledPath | Where-Object {$_.Name -match '.acf' -and $_.Name -ne 'appmanifest_228980.acf' } | Select-String -Pattern 'name' | ForEach-Object line
    $steamInstalledGame = $steamInstalledGameRaw -replace "`"|name", '' | ForEach-Object {
      "[$count] $($_.trim())"
      $count++
    }

    Write-Output "=============================="
    Write-Output $steamInstalledGame
    Write-Output "=============================="

    # run by game list selection
    do {
      try {
        $numOk = $true
        [int]$selection = Read-Host -Prompt "Enter Selection"
      }
      catch {
        $numOK = $false
      }
    }
    until (($selection -ge 1 -and $selection -lt $count) -and $numOK)

    $acf = Get-ChildItem $steamInstalledPath | Select-String -Pattern $steamInstalledGameRaw[$selection] | Select-Object Filename -First 1
    $steamGame = $steamInstalledGameRaw[$selection] -replace "`"|name", '' | ForEach-Object { $_.trim() }
  }

  if ($acf) {
    Write-Verbose -Message "Running $steamGame" -Verbose
    $gameId = $acf.Filename -replace "[^0-9]" , ''
    Start-Process steam://rungameid/$gameId
  }
  else {
    Write-Warning -Message "Steam Game Not Installed"
  }

}