Decay Walkthrough

2. Welcome to Decay

CONTROLS

Although horror-themed, Decay is a classic first-person point 'n' click adventure. If you've played Myst or even the Artifex Mundi games, you'll know what to expect from the mechanics. With that said, here's a brief overview of the controls:

cn_LS - Move the on-screen cursor

cn_dpad - move / rotate character

cn_A - select

cn_X - combines items in the inventory

cn_Y - inventory

cn_B - back / deselect

cn_LT - slow the cursor (mainly in Part 4)

cn_RT - speed up the cursor (mainly in Part 4)

cn_start - pause the game

Note that to combine items, you need to open your inventory then press cn_X over the first item you wish to use. Now highlight a second item and press cn_A. If you change your mind, press cn_B to cancel the combination.

SAVING THE GAME

Although an autosave is present, you can also manually save by pausing the game and selecting the option. It's not really necessary, as there's only one save slot which is shared with the autosave, and the few instances in the game where you can fail put you right back before you attempted them anyway.

ACHIEVEMENTS

The only missable achievements are one in Part 2, with the rest in Part 4, and are tied to collectibles, puzzles and several different endings. This means you can go ahead and enjoy being surprised by the story and the horror taking note of the one missable in Part 2, and come back to the guide for the final chapter if you wish to experience the game as it was intended. Even the missables in Chapters 2 & 4 aren't really missable per se, as you can select to play through that entire part of the game once you unlock it, as detailed in the overview.

I'll still list them here, however, so you know what you're in for:

PART 2:

Dial Number

Dial the number found on the access card to Oswald Estates.

Dial Number
Offline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Main Storyline - These achievements are gained automatically by progressing through the main game modes.

I'll go over this in the guide of course, but if you're playing blind up to Part 4, you'll need to know this in advance: During Part 2, you'll find several security swipe cards which give you access to different parts of the building. Open your inventory with cn_Y and examine them. One of them will have a message and a phone number on the back - Note the number, and be sure to dial it on the telephone you'll find in one of the rooms as you progress. You can't miss the phone, as you need to answer it at one stage to continue the story. You get the achievement for calling that number, so make sure you do it before completing the chapter!

PART 4:

The Iron Box

Unlock the iron box in 10 moves in Part 4.

The Iron Box
Offline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.

You got Balls

Arrange the colored balls in 60 moves in Part 4.

You got Balls
Offline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.

Bomb Expert

Disarm the bomb in 40 seconds in Part 4.

Bomb Expert
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.Time/Date - These achievements require you to play the game or perform actions at certain times, within a time limit, or on specific dates.

Circus Master

Balance across the hole as true master in Part 4.

Circus Master
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.

The Diary

Collect all diary pages in Part 4.

The Diary
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Collectable - These achievements are obtained by exploring the game environment to find a set of unique objects.Missable - These achievements can be missed.

Coin Collector

Collect all coins in Part 4.

Coin Collector
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Collectable - These achievements are obtained by exploring the game environment to find a set of unique objects.Missable - These achievements can be missed.

Handcuffs Collector

Collect all handcuffs in Part 4.

Handcuffs Collector
Offline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Collectable - These achievements are obtained by exploring the game environment to find a set of unique objects.Missable - These achievements can be missed.

Left to Suffer

Use all handcuffs on Anne in the basement in Part 4.

Left to Suffer
Offline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.

Hero

Get the best ending in Part 4.

Hero
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Missable - These achievements can be missed.

I'll detail all of the above in the guide. Finally, there's a cumulative achievement for reaching all eight ending variants. This will require two full playthroughs of Part 4, and six partial playthroughs from a save point. I will go into detail during the walkthrough and make the options as clear as possible. The related achievement is:

All Endings

Find out all the different endings in Part 4.

All Endings
1 guideOffline Game Mode - These achievements require play in game modes that do not necessitate a connection to any online services.Single Player - These achievements can be obtained by a single player.Multiple Playthroughs Required - These achievements cannot be earned during the initial playthrough.

For those who prefer a visual guide, You can follow Billzumanati's video guides, which I will include at the top of each page. I recommend following either the text or the video, as the order of events may slightly differ.

Remember, you can pause the game whenever you like! There's no time limit or silly related achievements in this one, so just follow closely and you'll have your full 1000g in around three hours.

Let's go!

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