Chivalry and Sorcery is an old RPG with a fair number of supplements. Fifth edition came out in 2019 and the C&S Bundle is a mix of 5E and 3E products.

Chivalry and Sorcery 5E ($30)

Nightwalkers ($14)
Treason ($12)
Creag Hill ($4)

The Art of Chivalry and Sorcery ($10)
GM Screen ($5)

For 3rd Edition

Dwarves' Companion ($4)
Elves' Companion ($4)
Armourers' Companion (free)
Knights' Companion (free)

Dragon Reaches of Marakush + Map ($19)
Anderia + Map ($5)
Treachery ($12)

I guess this bundle is too mixed to be a buy from me.