Cosmetics will give you bonus attributes but they may cost cognitions or
some attribute for using them.

Equipments or items like melees , rangeweapons , consumables that you can bring them to
the battle.

Skills that can be assigned for gameplay at certain slots.

Deftnesses are something like perks that player can hold them but costs for cognitions.

For the battle mechanics , Melees attacking can attack and block at more directions.
If you blocked melee at certain of incoming attacking direction will reduce damage.
Rangedweapons that you can reload by manually change magazines and keep it’s current ammo on it.
Make gameplay feels more unique from other FPS games.

In maps allow you scavenge for looting items that helpful for your gameplay.

Some maps may have day night cycling to make the gameplay becomes excited.
Most props have physics that they can be launched at anywhere.

There are singleplayer mode which you can play with AI or multiplayer that you can play
with other players.