I've compiled this guide on how to earn each achievement in Morphine, some are fairly self-explanatory, and a few are almost impossible to miss, but as is so often the case, there are some which are less obvious. I've also tried to offer some helpful hints to gain as many as possible in one playthrough (some checkpoint reloading is required.) I've also listed the achievements in the order that you get them, bar the two journal page ones.

I don't have the individual journal page locations unfortunately, but finding pages isn't as difficult in this game as it is in many others, in that your surroundings are never cluttered, and the pages are usually drawn to your attention by a green sparkle which appears to guide you at various moments, plus they're more or less always on doors/walls or the floor, and not hidden away in obscure places. I'll list those out of the way first.

When I use the term 'interact with', that means pressing the F key, which is the default button for examining things in this game. A question mark symbol will appear on things that you can interact with by pressing F. This means you will either read, look at, or touch/pick up. On occasion you will be required to use the left mouse button to do things instead, but the game instructs you as such at those times.

10 Journal Collected! - Read 10 journal pages throughout the game.

Collected More Than 15 Journal! - Read more than 15 journal pages throughout the game.

Walking Airplane! - Interact with the human-legged airplane when you come out of the bathroom at the very start of the game. It is running along the top of the short lockers directly in front of you.

Rabbits Team - Interact with the pink/blue 'Rabbits Team' poster on the right side of the corridor wall, just a little way past the airplane's lockers.

Rabbit Lover - When you reach the far end of the dark corridor and read the note on the door, you will see the rabbit appear further down the now-red corridor when you turn around, standing in front of fire. Simply keep looking at the rabbit for 10 seconds to get this achievement.

Cute Rabbit - After the rabbit in the firey corridor moves out of the way, make as if you're going to go up the flight of stairs, and a miniature forest will appear to block your way, with the rabbit standing on it. Interact with it for the achievement.

Lockpicking Master! - Succesfully pick a lock on the first try, i.e. without snapping the pick. Luckily, the achievement can be earned with any lock in the game, so don't worry about having to get it right on your very first go of lockpicking. It's actually a slightly similar mechanic to Skyrim, in that there is one 'sweet spot' that will turn perfectly, while the pick will vibrate at the wrong spot, eventually snapping. I placed this achievement here as you will be faced with your first lock right after the Cute Rabbit moment.

Horseshoe! - When you first appear in the barn cell, interact with the door to find it locked, then turn left to the shelf nearby and select the horseshoes on the wall, ignoring the other items. Use the horseshoes on the door to open it. You're free to examine the shelf once the door is open if you want to.

Hidden Rabbit! - Before you exit your barn cell, simply look out of the barred window behind you, and you will see the 'hidden' rabbit turning around in circles outside.

Hay Key! - Find the padlock key hidden in one of the hay bales, in the first one you try. This achievement relies on luck and guesswork unfortunately as the hay bale containing the key is random each time. Don't waste a try on the ones in the cell you started in, as those can't be destroyed. You'll need to reload the last checkpoint if you don't choose correctly, which places you back in your locked cell. You will know if you chose the correct bale, as the green sparkles which guide you randomly in the game will appear above the pile.

Hay Key Less 3 Try! - Find the hidden key in less than 3 tries; this relies even more on luck because of the random key location, since you have to find the key in the second bale you try. This achievement is sadly not unlocked at the same time as the previous achievement, even though the criteria fits; you will have to aim for this achievement on a second playthrough, or reload from the checkpoint in the locked cell.

Rich Club - Once the barn sequence is over, you will appear in the school corridor directly in front of a poster for the Rich Club, featuring a man smoking a pipe. Interact with it for the achievement.

Free Drinks - In the cafeteria, after you've sat down with your lunch and the 'incident' happens, head down the left side of the now-darkened room towards the drinks stand, which will now be spotlighted. Ignore the girl for a moment and interact with one of the cans of coke on the stand.

Swing Ride - Simply sit on the swing beside the campsite, just to the right of where you start off. You don't have to actually swing if you don't want to.

Ride 15 Sec - Stay seated on the swing for 15 seconds. Again, you don't need to be swinging.

Pickaxe Detector! - After you wake up at night in the campsite and head into the forest after the girl, you will arrive at a wooden shack. While having a look around, you should notice the pickaxe standing against the wall in the room next to the front door. You can't interact with it yet. Go back to the front door to find it is now locked, and that you'll need something to help you get it open. You simply need to turn left into the pickaxe room and pick it up within 15 seconds for this achievement.

Malkoçoğlu Firar - At the bedroom sequence where you start off hiding in the cupboard, if you are playing the game in Turkish, all you need to do is turn on the television. If you are playing in English and you turn on the TV, you will only see static, so wait for the checkpoint to register while you're still in the cupboard, then exit to the game main menu. Go into the game settings and change the game language to Turkish, then resume your game, and turn on the TV to get the achievement. You will now see a short film instead of static. **Remember that on the main menu, once you switch to Turkish, you must select the second option OYUN'A DEVAM to resume your game. The first option YENi OYUM is to start a new game, so DO NOT ACCIDENTALLY select that one.**

6 Bullet 3 Bottle - Your 'target' will appear 4 times, you must hit 3 of them, and let the rabbit make one of the shots instead of you. The 2 shots your father makes you take at the bottles don't count towards this achievement, only the targets that happen after. **Be careful you don't let the target get too close to you when you plan to fire at it, or the rabbit will automatically take the shot. If you miss a target when you don't want to, you don't get to fire at it again, the rabbit automatically gets the shot. This also applies for the next achievement.**

6 Bullet 4 Bottle - Almost exactly the same criteria applies as for the previous achievement, except you must hit your target all 4 times it appears, and don't let the rabbit take any shots. You might want to restart the last checkpoint again to get this one immediately after the other one (note the checkpoint is at the start of the bedroom in the cupboard, not at the bottles.)

Do Not Be Late - When you appear in the flooded school corridor, don't spend time checking all the rooms even though they're now all unlocked, just head straight down to the other end of the corridor (you may be stalled from walking for just a moment as you pass by the rabbit) and go into the end classroom. You will earn the achievement once you're inside.

Angel - When faced with William outside of the prom room, choose to knock him down with the gun instead of shooting him, leaving him alive.

Devil - Choose to shoot William outside of the prom room rather than hitting him, which kills him. To get both William achievements without 2 playthroughs, you can choose one option then reload the last checkpoint (placing you back to the start of your slow-mo walk just before) and then making another choice when you reach the point of deciding.

Revenge - Simply fire the gun at your targets in the prom room when prompted.

End of The Line - Fire at your final target on the school roof to conclude the game. (There is a small section to continue watching after the single credits screen passes, so don't quit out right away!)

I hope my guide has been helpful to some people, feel free to comment if there's anything you think I ought to mention but haven't, and please consider rating up if you found the guide useful. :)