- Estimated achievement difficulty: 4/10
- Offline: 42 (890 )
- Online: 3 (25 )
- Kinect: 4 (85 )
- Approximate amount of time to 1000 : 12-15 hours
- Minimum number of playthroughs needed: 3
- Number of missable achievements: None
- Do cheat codes disable achievements? No cheats
- Does difficulty affect achievements? Yes
- Glitchy achievements: Friendly Rivals has been reported as being glitched by some
- Unobtainable achievements: None
- Extra equipment needed?: Kinect
Harry Potter and the Deathly Hallows is much more combat orientated than the previous Harry Potter games. It has even been called "A Third Person Speller" by some. This game focuses entirely on combat with little to no exploration that made the previous games moderately entertaining.
It will take you at least three playthroughs to get all of the achievements because the difficulty achievements don't stack. Hard difficulty won't be that much of a challenge and the other two playthroughs shouldn't take you that long to complete. There are six achievements related to collectibles in the game, a video collectible guide can be found here.
Easy, medium, and hard playthroughs
You will unlock thirteen achievements by simple playing through the story. Other achievements are tied to kills, leveling up, and using potions and spells. You should reach level 20 if you defeat all of the enemies that you come across throughout the game. After completing your first playthrough prepare for another two to finish up all of the single player achievements.
There are four online achievements and they are relatively quick and easy to obtain. Two achievements will come by simply completing the fifteen online challenges that are available. For Survivalist you will need to 5-star a hard challenge, hard challenge four is recommended for this achievement. To obtain Friendly Rivals you will need to compare one of your challenge results with a friend's result. If you have no friends who have the game you can create a second account and add that account as a friend to obtain this achievement. This achievement has been reported as being glitchy and won't unlock for some. There is no known solution to sort this yet.
There are three achievements you get for completing all of the Kinect missions. There are 22 Kinect missions, 12 solo and 10 co-op. By the time you have completed all of the Kinect missions you should have unlocked Capable Casting which is the final Kinect achievement.
This game's achievements are easy to obtain but they are time consuming. The fact you have to have Kinect to gain all of the achievements may deter some though. Although if you do have Kinect these are some of the easiest achievements available for it.
x360a would like to thank jamie1000013 for this Road Map