but they will need to be sealed in advance before use

Zombicide: No Rest for the Wicked contains an absurdly wide range of enemies

Collector's Card Crate

you are also choosing which enemy ships will descend

Battlefield in a Box: Gothic Sector - United Frontier Listening Post (x1) (BB673) Malingtype_Auxiliaries but they will need toThe Battlefield In A Box Gothic Sector is a range tabletop ready painted terrain that allows you to build immersive battlefields straight out of the box. Combine multiple sets from the United Frontier range to create epic battlefields and wage war across the galaxy. Contains: 1x Listening Post, 2x Plasma Rifles, 1x Heavy Cannon, 1x Heavy Cannon Sensor and 8x Rare Earth Magnets