I don't normally use many mods so I can't really speak for workshop support but my guess would be that Fusion has more support. .. Steam Community
Revolution or Fusion? :: Serious Sam Classics - Steam Community Serious Sam Classics Revolution
Should I play this or the originals? :: Serious Sam Classics I don't normally use many mods so I
: Many consider it a convenient, "out of the box" way to play the classics on modern systems with improved QoL features. Serious Sam Classics Revolution
The game has received mixed reviews from players on Steam and Reddit :
: A brand new original campaign featuring 8 new maps and an exclusive boss.