| Platform | Equivalent file | Format | Capabilities | |----------|----------------|--------|---------------| | Steam | installscript.vdf | VDF | Pre/post install, registry, file ops, process launch | | Epic Games Store | .egstore + manifest JSON | JSON | Limited; relies on bundled installer exe | | GOG Galaxy | gameinfo.xml + custom installer | XML | Full scripting via bundled .sh / .bat | | Origin (EA) | InstallLog.txt (not user-editable) | Binary | No custom scripting; all inside thick installer | | Itch.io | butler + scripts | YAML/JSON | Process launch only |
"command" "#SteamPath\\steamapps\\common\\MyGame\\_CommonRedist\\vcredist\\2015\\vc_redist.x64.exe" "parameters" "/quiet /norestart" "WaitForProcess" "1"
"Registry"
On a Windows system with Steam installed, installscript.vdf is found inside a game’s depot folder:
Steam’s approach is more flexible than most competitors but less powerful than a full NSIS/InnoSetup installer.
