Accomplish the indicated achievement to get the corresponding number of Gamerscore points:
- The Law is Dead (5 points): Kill your first Damned Zombie.
- Alone at the End (10 points): Complete Story Mode in Single Player.
- Hard Worker (10 points): Complete all Objectives listed for any chapter.
- Got Pwnage? (10 points): Use each character's Pwnage ability 10 times.
- Weapons Expert (10 points): Pick-up all five mash-up weapons with each character.
- Money Grubber (10 points): Collect $20,000 in a single chapter.
- Beacon in the Dark (10 points): Survive a fortnight in Blackout Mode.
- Long Term Survival Plan (15 points): Survive 30 days in Survival: Classic.
- Super Savior (20 points): Bring all possible survivors to Def Money's yacht in Story Mode.
- Playing with Power (30 points): Get all 100 upgrades for your characters.
- Epic Run (30 points): Complete a Story Mode: New Game with 3 other players.
- Exhausted (40 points): Complete all Chapter Objectives.
The following achievements require the "Pure Pwnage Pack" bonus downloadable content:
- Let's Finish This (10 points): You revealed the end is the beginning when you completed Prequel: Day 56.
- Warm It Up (10 points): Not bad... you survived Pure Pwnage for 10 minutes. Tell your friends.
- The Pwnage (30 points): Definitely not a noob, you can hang with the boys from Pure Pwnage and pwn 10,000 zombies!