diff --git a/powershell/evolution-startup.ps1 b/powershell/evolution-startup.ps1
new file mode 100644
index 0000000..06a5293
--- /dev/null
+++ b/powershell/evolution-startup.ps1
@@ -0,0 +1,32 @@
+$OBS_PATH = "C:\Program Files\obs-studio\bin\64bit\obs64.exe"
+$FOOBAR_PATH = "C:\Program Files\foobar2000\foobar2000.exe"
+$MODRINTH_PATH = "C:\Users\riho\AppData\Local\Modrinth App\Modrinth App.exe"
+$BONGOCAT_LAUNCH_PATH = "steam://rungameid/3419430"
+$BONGOCAT_PROCESS_NAME = "BongoCat"
+
+
+function Open-If-Not-Already {
+    param (
+        [Parameter(Mandatory = $true)]
+        [string]$Path,
+        [string]$ProcessName,
+        [string]$WorkingDirectory = (Get-Location).Path
+    )
+
+    if (-not $ProcessName) {
+        $ProcessName = (Get-Item $Path).BaseName
+    }
+
+    if (-not (Get-Process -Name "$ProcessName" -ErrorAction SilentlyContinue)) {
+        Write-Output "Starting $ProcessName ($Path) ..."
+        Start-Process "$Path" -WorkingDirectory "$WorkingDirectory"
+    }
+    else {
+        Write-Output "$ProcessName is already running."
+    }
+}
+
+Open-If-Not-Already -Path "$OBS_PATH" -WorkingDirectory (Get-Item "$OBS_PATH").DirectoryName
+Open-If-Not-Already -Path "$FOOBAR_PATH"
+Open-If-Not-Already -Path "$MODRINTH_PATH"
+Open-If-Not-Already -Path "$BONGOCAT_LAUNCH_PATH" -ProcessName "$BONGOCAT_PROCESS_NAME"