There are four difficulty levels in Phasmophobia: Amateur, Intermediate, Professional, and Nightmare (plus a Custom difficulty level). That said, you cannot play immediately on the highest difficulty, as both Intermediate and Professional have to be unlocked first. Thanks to the Exposition update and Nightmare update, a few of these difficulties have been tweaked to make the game harder.
All Phasmophobia Difficulty Levels
On all difficulties, a new addition has been added: A percentage of doors will now randomly start open, depending on the difficulty.
Amateur - For New Ghost Hunters
On Amateur difficulty, cash rewards and experience gains are all normal. All players have a start-up phase on this difficulty, so for the first five minutes before the hunt, the ghost leaves you alone. This means that you can set up all equipment needed in complete peace, with zero risk of dying. Sanity drain is normal, and Sanity Pills restore a lot of your sanity.
Ghost activity is pretty uncommon, so don't expect any crazy things to happen. But when it hunts, it lasts for 25 seconds, so make sure you hide in that time and wait it out. Upon death, 50 percent of lost items are returned to the players who have died.
Intermediate - The Standard Experience
Intermediate is unlocked when players reach level 10, and you get double the cash rewards and 1.5x experience gain. The start-up time still applies, but it's shortened to two minutes before the hunting phase beings, so you better know what you are doing. Sanity now drains at 1.5x, and Sanity Pills restore some of your sanity.
Ghost activity is common, so start getting used to seeing more paranormal activity. The hunting phase is ten seconds longer, clocking in at 35 seconds. You have fewer places to hide, and the fuse box will always be off by default. Those who have died will receive 25 percent of the value of items lost.
Professional - For Experienced Ghost Hunters
Professional is unlocked when players reach level 15. You get triple the cash wards and double all experience gained, but there is zero setup time. Meaning the ghost could go into the hunting phase not long after players have entered the house. Sanity drain is doubled so that players will be regularly heading back to the truck for a breather, and Sanity Pills restores little of your sanity.
Ghost activity will be frequent, so be on guard to be startled more times than not. The hunting phase lasts for 50 seconds, so grip those cupboard handles tight and don't utter a single sound. The Fuse Box will be off from the start, making that the first objective of the players. Also, the Objective Board will not inform you how the ghost responds, whether they prefer being alone or to everyone. You have hardly any places to hide, and the ghost may chance its preferred haunting room. And finally, all those who have died will get zero percent of value of lost items back.
Nightmare - For those who like to suffer
Nightmare difficultly was added in the Nightmare update and is made to challenge even the most hardcore of Phasmophobia players. There is no setup time, and you have next to no warning before the hunting begins. If a player is killed during the hunting phase, the phase is extended. Each kill extends it. The fuse box is turned off by default, and there are almost no places to hide. None of the ghosts will reveal any type of evidence, and they'll sometimes change their haunting room. Sanity pills will hardly restore your sanity, and some of your monitoring equipment is damaged by paranormal activity.
Custom Difficulty - Pick your Nightmare
Custom Difficulty is planned as the newest addition to Phasmopohiba's diffuclity options. Custom Difficulty allows users to customize how challenging or easy the game is. Some options will allow players to change features like weather, hunt duration, and the option to disable glashlights. The new diffculty mode will also allow users to change how effective sanity pills are, the amount of evidence given by ghosts, and how interactive the ghost is.