These cards are at the root of Freebooter’s Fate. The pack comprises 40 fate cards with numbers and symbols, two sets of 6 hit location cards each and a set of 12 event cards. You will need this pack to play the game, but you will only need one pack for a game, regardless of the number of players and characters involved.
The cards are bilingual where appropriate, so you only need this pack, regardless of which version of the rulebook you use.