So, I've been watching the videos for Murdered: Soul Suspect, and I had an idea for a game. The DM would have to plan out an elaborate murder that the players had been investigating just before they were murdered. They are killed, but don't know how or why until they begin investigating it in the afterlife. They would have a clock of seven days to solve both murders while spirits wandering the world. Light on rules, and EXP is awarded and spent to gain abilities. The abilities I had are:
Spoiler
Armored Soul
Cost: 15 EXP Changes 1 point of lethal damage into nonlethal damage per attack. This ability may be taken multiple times.
Cost: 10 EXP Prerequisite: Fast Mover Range: 40 ft. Move up to 40 ft. instantaneously regardless of physical barriers. Each blink costs 15 minutes of time on the mortal plane.
Cost: 25 EXP You may say up to seven words that living creatures can hear as though whispered. Each time you converse with mortals it costs 15 minutes of time on the mortal plane.
Cost: 10 EXP Prerequisite: Spirit Gun Increases the damage of Spirit Gun by 1. Increases the time cost of Spirit Gun by 5 minutes. This ability may be taken multiple times.
Cost: 20 EXP Prerequisite: Converse With Mortals Range: 10 ft. Lift a single item of up to 5 lbs. You may move items levitated this way up to your movement speed per round. Each use of poltergeist costs half an hour of time on the mortal plane. This ability may be taken multiple times, each time increases the weight limitation by 5 lbs and reduces the cost by 5 minutes to a minimum of 10 minutes.
Cost: 20 EXP Prerequisite: Converse With Mortals Range: Melee Take control of a living body for up to 1 minute. You may not cause the possessed body to die intentionally. Each time you possess a body it costs half an hour of time on the mortal plane.
Cost: 10 EXP Range: Melee / 20 ft. Damage: 3 HP Creates a knife made of energy for the wielder. It can be used to slash or be thrown. Unattended soul knives disappear after 10 seconds. Each knife costs 15 minutes of time on the mortal plane to conjure.
Cost: 10 EXP Damage: 5 HP Range: 30 ft. Shoots up to two bullets per round. Can only damage incorporeal beings. Each bullet costs half an hour of time on the mortal plane.
Cost: 25 EXP Range: Melee You can see the target's last memory they were thinking about. Each use of view memories costs half an hour of time on the mortal plane.
So, use your week's time as a resource, every time you use an ability that burns up your time you bring yourself closer to being taken out of the game. Free movement through walls in in any direction since you're not subject to physical walls, abilities to work with the physical world at a cost, and others to fight in the spirit plane.