- Estimated achievement difficulty: 7/10 [Achievement Difficulty Rating]
- Offline: 47 [1000

- Online: 0
- Approximate amount of time to 1000

- Minimum number of playthroughs needed: 2 [but this is not recommended]
- Missable achievements: 2
- Does difficulty affect achievements: Some difficulty-related achievements
- Unobtainable/glitched achievements: 0
Introduction:
When Dead Space first released back in 2008, it was a survival horror revelation. The atmosphere was wonderfully tense and creepy, and the setting was grounded in the sort of industrial science fiction that had worked so wonderfully for the Alien franchise. As for the gameplay, Dead Space took all the best bits of Resident Evil 4, and combined them with a limb lopping mechanic, and lavishly gruesome enemies to dismember. It was excellent, and it spawned a similarly well-received sequel, but things eventually went off the rails with Dead Space 3, and it seemed the series might have been lost to the cold vacuum of space.
Luckily, EA has made us whole again by reviving the series, with a gorgeous remake of the first game. There’s a few differences from the original in the Dead Space remake, but otherwise it remains very faithful to the source material. As such, the achievement list remains mostly the same as well, although there are a few surprise additions, and possibly the need for an extra playthrough, as well. So get ready to enter the horrors of the USG Ishimura once again, and step into the heavy boots of Isaac Clarke, in Dead Space.
Walkthrough:
Ok, so, technically, you can get the 1000

As such, you’ll really need a minimum of three playthroughs to get the full 1000

1 - Normal Playthrough:
This first playthrough can basically be approached however you like. If you want the “standard” experience, you can play through on Medium difficulty, with access to all of your weapons. Basically, approach the game how you would if you weren’t thinking too heavily about achievements.
We’d also recommend completing the three newly added sidequests, and backtracking to find all of the Schematics and Audio Logs on this playthrough as well, although these can be saved for New Game+ if you so choose.
You can even make a save file just before the “point of no return” at the end of Chapter 11, and come back to it after completing the game, in order to backtrack through the Ishimura and pick up everything that you left behind. However, you will need to collect as many Nodes as possible in this playthrough regardless, to make a good start on fully upgrading your weapons and suit, so we recommend fully exploring on this first playthrough.
It’s also worth pointing out that everything in Chapter 9 is fully missable, as this is the only area you can’t return to. This area includes a Schematic, some Nodes, and the Front Toward Enemy (10G) achievement. These can also be grabbed in the NG+ playthrough or even the Impossible playthrough, but it's best to grab them first-time around to put your mind at ease.
In the process of this first playthrough, you should end up getting the vast majority of the achievements.
Welcome Aboard (10G)
Lab Rat (10G)
All Systems Go (10G)
Cannon Fodder (10G)
True Believer (10G)
Greenhouse Effect (10G)
S.O.S. (10G)
Strange Transmissions (10G)
Wreckage (10G)
Keeper of the Faith (10G)
Betrayed (10G)
Exodus (50G)
Final Regeneration (40G)
Whole Again (40G)
Set A Benchmark (40G)
Full Arsenal (10G)
Built To Order (30G)
Autofire (10G)
Live with the Hot Ones (10G)
A Cut Above (10G)
Pusher (10G)
Eviscerator (10G)
Full Contact (10G)
Pack Rat (10G)
Story Teller (10G)
Legend Teller (10G)
Merchant (10G)
Marksman (10G)
Surgeon (10G)
Wishbone (10G)
Raise The Stakes (10G)
Freeze (10G)
Backbreaker (10G)
There's Always Peng! (10G)
Front Toward Enemy (10G)
Z-Baller (30G)
Full Clearance (30G)
Brute Force (10G)
Exterminator (10G)
Get Off My Ship! (10G)
Mindless Prey (10G)
2 - New Game+ Story Difficulty and Plasma Cutter Only:
Now, if you could start New Game+ on Impossible difficulty without having played through on Impossible before, then this would be our second and final playthrough. However, because that isn’t the case, there’s only three main goals for New Game+. Those are: collecting the new Marker Fragment collectibles (exclusive to NG+); fully upgrading your suit and weapons; and completing the game using only the plasma cutter.
Because of this, it’s actually best to do your New Game+ playthrough on Story difficulty. This difficulty setting makes enemies extremely easy to deal with, but, most importantly, it automatically regenerates Isaac’s health after an encounter. This is important, as it means that you can sell every health restoring item you pick up, earning credits to buy more Nodes from the in-game store. This is the best way to ensure that you have enough Nodes to fully upgrade everything at the workbench.
Additionally, putting the game on Story difficulty also makes a Plasma Cutter-only run very easy, and can cut a full playthrough of the game down to around 7-8 hours, possibly even shorter.
If you’d like, you could do the Plasma Cutter run on your first playthrough, or even save it for Impossible difficulty, but like we said before, this way ensures you get to tackle your first playthrough exactly how you want, and cuts down the time you spend on NG+. In this run, you’ll unlock the following achievements:
Trusted Contractor (50G)
One Gun (30G)
Maxed Out (150G)
Marked (10G)
Reunion (40G)
3 - Impossible Difficulty Playthrough:
Bloody hell. Not only does Impossible difficulty see enemies taking less damage, and Isaac taking more (just like hard mode), it also limits you to a single save file. And if you die? Well, say goodbye to that save file forever, you’ll have to start right from the beginning on Impossible Mode again.
It’s a tough old time, but there are some tricks and tips you can use to make things just a little easier.
The most important piece of advice we can give you is this - IF YOU DIE, PAUSE IMMEDIATELY. The moment that an enemy kills you and you hear Isaac flatlining, pause the game. Dead Space allows you to pause, even midway through a death animation, and the game won't have counted it as a death yet.. From here, choose to return to the main menu, and you should find that you can load up your Impossible save from the last save point once again. If you can pause and quit just before you die, even better, but if the worst happens, you should still be able to quickly quit out and not have this playthrough ruined - it worked for us during an infuriating accidental death in Chapter 12, so it should work for you as well.
You’ve got to be careful. You’ll want to save at basically every save point you see, and if a battle starts to get away from you, just immediately quit out. After two playthroughs, you should have a good idea of where Necromorphs spawn from, but if you do get ambushed and lose too much health, or use up too much ammunition, just quit and reset, ready to try again. Health and ammunition are at a premium on this difficulty setting, so you don’t want to end up in a situation where you can’t possibly win.
Speaking of ammunition being at a premium, you’re going to want to make heavy use of Stasis and Kinesis. Stasis can be great for freezing a group of enemies and simply running past them, especially in areas where you have a recharge station nearby, is hugely helpful to save on ammunition, with most enemies unable to follow you through closed doors into another room. Kinesis, meanwhile, is an ideal way to make the most of your surroundings, and save up your ammunition. Keep an eye out for poles or pipes on the wall with a slight blue glow at the end, which can be ripped out and used to pin necromorphs. Similarly, vents that are busted open by an enemy usable leave behind a fan blade, which can slice through arms and legs when fired with Kinesis. Since Kinesis is unlimited, and Stasis can be recharged for free, try to make upgrading these on your suit a priority when using Nodes at the Bench.
It’s not going to be easy, but by the time you finish an Impossible playthrough, you’ll have unlocked the final achievement.
Untouchable (120G)
Conclusion:
The Dead Space remake successfully revives a beloved survival horror franchise with gloriously gory aplomb. Nothing that made the original so good has been compromised, even with all the new additions. Bring on Dead Space 2!