Survive 6 nights without buying anything

Survive 10 nights without any barricades, turrets or mines

Survive 10 nights without taking any damage

Kill 8 zombies with a single sniper rifle bullet in defense mode

Kill 8 zombies with a single rocket in defense mode

Kill 300 zombies with shotgun in a single game in defense mode

Use no more than 6 clips during the first night

Build and equip four turrets

Score 10,000 points in defense mode

Score 30,000 points in defense mode

Score 80,000 points in defense mode

Score 150,000 points in defense mode

Score 250,000 points in defense mode

Score 500,000 points in defense mode

Score 1,000,000 points in defense mode

Survive for 2:00 in endless night mode

Survive for 3:30 in endless night mode

Survive for 5:00 in endless night mode

Keep playing to discover this achievement

Play through a deathmatch game

Survive night 9 or higher using mines only

Survive night 7 or higher using grenades only

Survive night 7 or higher using chainsaw only

Kill 70 enemies with flamethrower in one night in defense mode

Have 25 enemies frozen at the same time in defense mode

Kill 15 enemies with a single laser beam

Abandon all hope