Total Party Kill Slightly changes the concept of projects, where the main character is engaged in the study of the dungeons. First of all, this is displayed in the number of actors, because now there are three of them at once. The role of each member of the team is important, because only due to competent interaction can you get through many rooms and dungeons. Each time, the situations will become more and more difficult, so gamers should adapt and make decisions on the go.

Gameplay mechanics in Total Party Kill are tied to the skills that the heroes use. The abilities are dictated by the class distribution: the knight can throw his comrades, the magician is able to turn into ice cubes, and the ranger naits the arrow to the walls and uses it as platforms. These principles will become basic in passage, but there is one nuance. In order to complete each segment, it is necessary to kill one of the members of the detachment, using these abilities. For example, throw someone on steel stakes so that his corpse falls on the pressure plate and open the passage further. Or, if you need to lay the path through a dangerous zone with spikes, you need to turn your unit into an ice cube, shoved into a gap and successfully passing on. At the initial stages, the system places tips indicating which mechanics should be used. But in the future, this option disappears, and when it enters the next prison, it is necessary to act based on the circumstances.