10 Difficult Xbox Achievements That Are Not Worth It

3. Dead Rising – Seven Day Survivor

Seven Day Survivor is already a tricky achievement due to the player's constantly draining health, respawning psychopaths and the plague of zombies that are always tricky to deal with in numbers, but things are made worse by the sheer amount of time required. Getting Seven Day Survivor needs you to invest 22 real time hours straight, a huge quantity of time that the average guy is unlikely to have on hand.