- Estimated achievement difficulty: 4/10 [Achievement Difficulty Rating]
- Offline: 38 [1000

- Online: 0
- Approximate amount of time to 1000

- Minimum number of playthroughs needed: 2+ possible partial playthroughs
- Missable achievements: 18
- Does difficulty affect achievements: No, you can play on Easy, if you like.
- Unobtainable/glitched achievements: 3 [and 1 that doesn't work properly]: You Can’t Keep Me Out! (15G) doesn't unlock upon opening all doors and safes; Radical Acceptance (35G) and One of the Thousand Young (35G) are bugged, as the objective you need to complete fails to trigger; and Teetotaller (60G) can only be completed with Edward (despite the same mechanics for this achievement working across both characters, which makes no sense as to why it would only unlock when you play as Edward).
Introduction:
Alone in the Dark is a remake of the cult classic 1992 survival horror, and it stars David Harbour as Edward Carnby and Jodie Comer as Emily Hartwood. In it, you'll return to the original game's Derceto Manor, in a Southern Gothic storyline that stirs in Lovecraftian weirdness and a menagerie of lumpen monsters. There are some neat puzzles to figure out, a bit of clunky combat to contend with, and a fair bit of exploration to be done, especially if you want to gather all of the game's lagniappes (collectibles).
You'll need to complete at least two playthroughs, using the first one to methodically gather every collectible, so you can use the second as your speedrun playthrough for I Don’t Got All Night (30G) achievement, potentially combined with the Teetotaller (60G) achievement. This involves completing the story without necking booze from your flask to heal, which can be tricky, even at Easy difficulty.
A bit janky it might be, but there's some fun to be had in Alone in the Dark, if you're able to look beyond the game's various bugs and other issues. Despite some glitched achievements, this is an otherwise straightforward completion, especially with a bit of tactical saving (you have ten manual save slots available to you). Alone in the Dark isn't the best horror game out there, but try to enjoy yourself, yeah?
Step 1 - Complete the story and collect all of the lagniappes, clues, locked doors, etc.:
Ideally, your first playthrough should be taken at a leisurely pace, taking your time to track down every lagniappe collectible; unlocking every door, lock, and safe; finding every clue; and completing every additional dialogue with NPCs. It doesn't matter which difficulty you play at, or which character you choose to tackle the story with initially. Making a save at the beginning of Chapter 4 is also a good idea, as you can then use certain completed lagniappe sets to unlock alternate endings, earning several additional achievement in the process. There's also a bug causing lagniappe collectibles to be lost upon completing the game, so being able to go back and reload a save is crucial.
During your first playthrough, you can potentially unlock the following achievements:
Welcome to Derceto (15G)
The Thin Veneer of Civilization (15G)
Whatever It Takes (15G)
Come At Me! (15G)
Now You're On the Trolley! (15G)
On the Mend (15G)
In Between There Are Doors (15G)
Left Holding the Bag (15G)
Found and Lost (30G)
Somewhere Else Entirely (15G)
Drop Me Off In New Orleans (30G)
Losing My Mind (15G)
Where I Belong (15G)
I Abandoned Him (30G) or I Stole the Child and Let Him Drown (30G)
When Therapy Makes It Worse (15G)
The Past as a Present (15G)
Frenzy (15G)
Back to Normal (30G)
Case Closed (60G) or Safe and Sound (60G)
Don’t Mind If I Do (15G)
Watch Out Where You’re Waving That Thing (15G)
Bonfire Night (15G)
Hard Boiled (15G)
Gangster (15G)
An Honest Day’s Work (15G)
Step 2 - Complete a second playthrough as the character you haven't played as yet, mopping up any collectibles only available as that character:
If you played first as Emily, play as Edward for your second playthrough, and vice versa. You'll need to complete more optional dialogues for the Chatterbox (30G) achievement, and you can attempt to nab the I Don’t Got All Night (30G) and Teetotaller (60G) achievement while you're at it, playing on Easy. This might be a little tight, however, so you may require a third playthrough. You can also make judicious use of manual saves to make your life easier.
This should step should unlock:
Chatterbox (30G)
Nobody Knows What Happened (35G)
What Just Happened? (35G)
Radical Acceptance (35G)
One of the Thousand Young (35G)
You Can’t Keep Me Out! (15G) *GLITCHED*
Look At All the Free Stuff I Got! (60G)
Librarian (30G)
Step 3 - Load up your Chapter 4 save to unlock alternate endings if you haven't already, final mop-up:
If you've yet to unlock the alternate endings using completed lagniappe sets, you can do that now. And, should your attempts at Teetotaller (60G) and I Don’t Got All Night (30G) have fallen short, a third playthrough might be in order. Hopefully, this shouldn't take you too long, as you should have Derceto Manor and its puzzles fairly well mapped out in your head at this point. Get everything done, and you'll earn the Alone in the Dark (65G) achievement. Phew.
Conclusion:
Alone in the Dark is a fairly easy completion, albeit one hampered by bugs and a handful of glitched achievements. Keeping hold of a manual save at the opening of Chapter 4 will alleviate a lot of headaches, as you can always load it up and unlock the game's extra endings, providing you have the requisite lagniappe sets. Happy hunting!
[XBA would like to thank Rich Walker for this Roadmap]