Compare the that run smoothly on older hardware.

Tarjeta de video con soporte para DirectX 9 o superior. Resolución: 1024 x 768 con color verdadero. Alternativas legales y seguras en Uptodown

All of these are safe to download from their official websites or PortableApps.com — .

A direct "Uptodown link" will not satisfy the request for a "portable" version, nor will it provide a version compatible with Windows 7.