Proximity Mines (commonly abbreviated as PM) are a mine that are confirmed to be available in the Spacefront storyline.
Proximity Mines are mines that replace Claymores. As the name suggests, Proximity Mines, when placed, detonate after zombies reach a certain radius. When Proximity Mines detonate, shrapnel is launched in all directions, which rips and tears zombies apart, even up to round 50. Proximity Mines cost 1000 points, and are available off the wall. When purchased the player is given two mines.
- Proximity Mines are small, circle-shape disks with an antenna on the top.
- Proximity Mines do not have splash damage, thus they are great for closed-in corridors or buildings.