Since the 2009 physical collection is now rare, modern players typically use digital storefronts to build their own "all-in-one" experience.

While many websites claim to offer a "Metal Slug All-in-One Collection Free Download for PC," these are often unofficial or potentially unsafe sources. For the safest and most reliable experience, you should look for the official 2009 release or modern digital bundles. The Official "All-in-One" PC Collection

: Unlike the console versions, this PC port was noted for having limited credits for certain titles (e.g., only four credits for the original Metal Slug ), though Metal Slug 5 and 6 offered unlimited play. Modern Ways to Play on PC

: Titles like Metal Slug 4 , 5 , and XX are available individually on platforms like GOG or the Microsoft Store .