Nord Games is producing a Critical Hit Deck for D&D 5E over on Kickstarter. They've sent me along a few previews of the cards themselves, which you can see below. There are four card decks - Critical Hits for GMs, Critical Hits for Players, Critical Fails, each with 52 cards showing four different outcomes per card, plus a Luck Deck. The Luck Deck is a new mechanic with 26 good luck and 26 bad luck cards.
The difference between the player and GM critical hit decks lies in the nature of the results. The GM deck contains options which rarely killPCs outright; the player version has simple results and finishing moves which are easy for the GM to track. You can find the Kickstarter here - it's halfway through and already funded 13 times over!
The difference between the player and GM critical hit decks lies in the nature of the results. The GM deck contains options which rarely killPCs outright; the player version has simple results and finishing moves which are easy for the GM to track. You can find the Kickstarter here - it's halfway through and already funded 13 times over!