All munchkin sets can be played with each other but expansions work best with the main/deluxe sets they are related to.
A 106-card expansion forMunchkin: Apocalypse.
It's the end of the world...again.Munchkin Apocalypse 2: Sheep Impactis a 106-card expansion forMunchkin Apocalypse. Now you can arm your hardened survivor with the "Patriot Axe" and "Ketchup Gas" to take on the "The Thawed Reich"! Protect yourself with the "Bomb Suit" and "Survival Manual", or the "Antisocial Media" will end you prematurely! Watch out for "Disaster! Velocirapture!" and terrifying new Seals like "The Singularity"! Play a new Class — the Daredevil — and thumb your nose at apocalyptic peril!