Serious Sam 4 Deluxe Edition V1.09-gog
One of the GOG version’s hidden superpowers is mod compatibility. Because there’s no Steam Workshop dependency, you can manually install mods from NexusMods or ModDB.
Deluxe Edition Exclusive Content
GOG-Specific v1.09 Benefits
Because it’s DRM-free, you can set up a LAN party without an internet connection. Just install on multiple machines, point them to the same local network, and enjoy 4-player co-op without a hitch. Serious Sam 4 Deluxe Edition v1.09-GOG
